Dead Stick Leads to a Dead End

MikeD

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Staff member
The best time to keep your shirt on is when you are hot under the collar......

20 October 1987
Indianapolis International Airport (KIND)
Indianapolis, Indiana

Ling-Temco-Vought A-7D Corsair II, 69-6207, c/s Chaps 24
4450th Tactical Group, Tonopah Test Range, Nevada
Tactical Air Command, USAF
1 minor (pilot), 9 Fatal (ground fatalities)


One of the toughest parts of being a pilot is dealing with an emergency situation with no prior warning. Most of general aviation is routine flying, with nothing exceptionally exciting or out of the ordinary going on. Emergencies that have prior warning or have a good amount of time to work on and solve, up the ante of making a situation more tense than normal. But it's the emergency situation that happens quickly, with little time to analyze and solve, which is where we earn our pay as pilots. The challenge these types of emergencies present to a pilot or crew is that oftentimes, if you're not already in a square corner, then you're rapidly heading that direction. You as a pilot may or may not have the luxury of time on your side to help keep you out of the square corner as much as possible. As such, any decision you make, or even decisions outside your control..... from the simplest to the most complex.....may be the difference between complete success, or complete failure. The best a pilot can do in this situation is to keep rolling the proverbial dice, and do what his knowledge, experience, training, and SA all collectively allow him to do within the constraints of factors outside his control. This is the situation that was faced by the pilot of A-7D 69-6207 on the morning of 20 October 1987, over Indianapolis, Indiana.

In the late 1970s, a revolutionary aircraft that became known as the Lockheed F-117A Nighthawk stealth fighter began to be constructed as a Top Secret "black program", to be based at the Tonopah Test Range airfield (ICAO: KTNX) located in the northwest corner of the Nevada Test and Training Range (NTTR). I personally have over 350 hours in the F-117A as a pilot and IP when it was later a grey program post-1992. When the F-117As began flying in 1981, they were still a black program not meant for any public viewing anywhere. Hence for pilot currency flights, the USAF needed an aircraft with the same flight characteristics and overall handling that the pilots of F-117As could fly, and still be seen in the open with. The LTV A-7D Corsair II was chosen to be this "companion trainer" for the USAF as it was readily available and cheap to operate. By this time in the early-1980s, the A-7D was no longer in use with the active-duty USAF, it was only in the Air National Guard (ANG). The cover story for this one active-duty unit of A-7D Corsairs was as a test unit based out of Nellis AFB, NV (ICAO: KLSV), which coincidentally was where the administrative support for the F-117A operation at Tonopah was located, as well as where the families of the men who flew the F-117A lived. Interestingly, during the black years from the late 1970s through 1988, the crews would commute from Nellis to Tonopah on Monday and return Friday on contract 727s flown by Key Air, without ever being able to tell their families where they went or what they were doing. The A-7Ds remained as companion trainers until 1989, when they were replaced by Northrop T-38A Talons.

On the early morning of 20 October 1987, an F-117A pilot flying one of the unit's A-7Ds was preparing to takeoff from Pittsburgh International Airport, Penn (ICAO: KPIT) on a return flight to Nellis AFB. The pilot had been in Pittsburgh attending the funeral of a fellow pilot who had perished in a fighter jet crash a week and a half earlier, and now was making the return trip home in A-7D 69-6207, callsign Chaps 24. 6207s pilot had departed uneventfully from Pittsburgh, and was at his cruise altitude of FL 320. Over the Ohio-Indiana border and about 75 miles east of Indianapolis, the pilot of 6207 began experiencing problems with the A-7s single engine, and declared an emergency with Indianapolis ARTCC. Some confusion occurred due to radio calls from civilian VHF traffic blocking ATC from hearing the pilots emergency calls on UHF, however it was established that the pilot of 6207 was losing power and needed to land immediately. Descent clearance was granted and radar vectors were provided to Indianapolis International airport (ICAO: KIND). Losing power towards idle, the pilot of 6207 deployed his Ram Air Turbine (RAT), began running emergency checklists, and started his descent on the vectors as provided. Indianapolis International was showing BKN-OVC008 and 1-2 miles visibility in fog. Descending into the tops, 6207 was handed off from ARTCC to Indianapolis TRACON and vectored for an ASR approach to RW 4L, due to the single-pilot being now task-saturated with running emergency checklists and flying in IMC. About 20 miles out, 6207 was picked up by the ASR controller and issued vectors for 4L (today, RW 5L: 11,200' x 150' runway) as well as being told to continue descent towards the MDA. Short vectors were being issued due to the engine problems becoming rapidly worse, and approximately 15 miles south of the field, the Corsair's engine began rolling back to idle. The pilot of 6207 was still high in relation to the recommended altitudes for his geographic location on the ASR approach and the GCA controller instructed the pilot a number of times to increase his descent rate, both to get down to MDA as well as to allow maximum runway available for landing. The pilot of 6207 did not want to descend too much faster than an average non-precision descent rate, especially while IMC and with the sick aircraft, for fear of ending up short of the runway. 4 miles southeast of the field, 6207s engine flamed out completely.

The GCA controller still issued vectors to the pilot, further insisting that he increase his descent rate in order to make the runway. The pilot of 6207 advised the controller that he might have to eject and inquired as to whether he was over a populated area. There was no response to this as the controller continued his vectors for the ASR. As it turned out, the pilot of 6207 appeared over the missed approach point, the runway 4L threshold, at 3100 MSL (2300 AGL) and too high to reasonably complete the landing on RW 4L. Due to this, the GCA controller instructed the pilot of 6207 to "go around again", even though 6207 had no engine power and was a dead-stick. The pilot declined this and requested a circling maneuver, and was granted a circle east for a 270 degree turn to land on RW 31 (today RW 32: 7280' x 150'). With the A-7D having poor glide performance and a high descent rate, the chance of making the circling maneuver was slim to begin with, but choices and options were getting fewer and fewer by this time. By the time the A-7 had reached the departure end of RW 4L to begin its right turn for the right downwind for RW 31, the pilot of 6207 was already down to 2000' MSL, or about 1200' AGL. Radar contact was lost at this time as 6207 continued its descent eastbound, east of I-465. Passing 500 AGL, the pilot of 6207 aimed the jet for an empty baseball field and initiated ejection from the aircraft. Canopy separation, ejection sequencing, seat-man separation, and parachute inflation were all uneventful from the A-7D Escapac ejection system, the pilot landing in a parking lot following a short descent. The A-7D however, began a left turn after the pilot left the aircraft. It clipped the roof of a Bank One branch located on the northeast corner of Executive and Bradbury streets, crossed Bradbury street, and hit an earthen embankment in front of the Indianapolis Airport Ramada Inn, located at the southeast corner of the same intersection. The embankment impact caused the aircraft to careen airborne again and it flew into the lobby of the Ramada, exploding into a fireball into the lobby and causing a massive fuel-fed fire from the lobby up to the 4th floor. Indianapolis Airport ARFF units, having been previously alerted and staged for the arrival of 6207, arrived on scene within 1 minute and began applying foam to the exterior and interior of the hotel. The main body of the fire was under control in approximately 4 minutes. 9 persons on the ground and in the hotel were fatally injured. The pilot of 6207 suffered minor injuries.

Probable Cause:

*Engine- Accessory Gearbox Failure- Total
*Engine- Oil Loss- Seizure

Secondary Factors:

*Weather- IMC
*ASR Approach- Executed

Tertiary Factors:

None

MikeD says:

This particular accident brings up two specific areas of discussion related to what happened that day, one technical and one philosphical:

1. Problems with the A-7Ds Allison TF41A-1 engine
2. Thoughts on dealing with a dead-stick aircraft

The Allison TF41A-1: The Allison TF41A-1 that the LTV A-7D aircraft utilized was a license-built version of the Rolls Royce RB-162 turbofan engine. The version used in the A-7D was 14,250 lbs/thrust and non-afterburning. The TF41 had been an engine that wasn't without troubles. The first problems noticed in 1970 with this engine were cracks in the fan disks, sometimes very early in the engine's life. This was noted to have been a factor in a number of US Navy A-7 accidents, both in CONUS as well as in combat in Vietnam. In November 1984, USAF engine mechanics had begun noticing excessive and early wear on the TF41 engine driveshafts of a number of A-7D aircraft. These findings generated a Safety Directive in June 1986 for all TF41 engines to have their driveshaft splines checked during any compressor work or engine teardown. The driveshaft splines are the gear teeth that connect the driveshaft to both the turbine as well as items such as the accessory gearbox on the engine. 69-6207 was found to have suffered a catastrophic destruction of a gear within the engine accessory drive gearbox. The disintegration of this gear tore open the engines oil lubricating system and sump, depleting the engine's oil. The engine immediately began to lose power and eventually seized from lack of oil. 6207s last major engine maintenance had been in February 1986, 4 months prior to the issuance of the Safety Directive, which would have been complied with during 6207s next scheduled major engine inspection.....an inspection that would never come.

Dealing with a Dead Stick Aircraft: By any measure, the pilot of 69-6207 had his work more than cut out for him in dealing with this emergency. From losing power in a single-engine jet, to having to work the EP by himself, to being forced into a descent into IMC, from having to manage an instrument approach, to having very little time to get his visual bearings once VMC and......finding himself outside a usable position to land....having to come up with an alternate plan in very little time. All of these factors happening at nearly the same time or closely overlapping, all equaled an extremely large amount of task saturation, even for the best of pilots with the highest of SA. But in being able to look back at what occurred and the sequence of events, easy to analyze at 0 airspeed and 1 G of course, some food for thought comes out of this accident.

The initial emergency happened pretty far from IND, and the major problems began 15 miles south of the airfield itself. Although the immediate concern when this emergency began progressing was to get the A-7D down at a suitable airfield; following the aftermath of this accident, the question has to be raised of the suitability or risk of bringing a knowingly sick single-engine aircraft from a geographical area that was relatively rural, into an area that was very urban. For each mile the A-7D came closer to Indianapolis and every bit of altitude the jet lost, the window for options and "escape routes" became fewer and fewer. As these options became fewer, the situation began to narrow down to a "make it or break it" situation. Had the pilot of 6207 broken out earlier and landed safely on RW 5L, we wouldn't be having this conversation and this accident synopsis wouldn't be getting written. The pilot would've been a hero and would've won his gamble. Unfortunately, as the options became fewer and fewer, the pilot ended up losing his last poker hand, and despite his best efforts and intentions, couldn't control or avoid where the aircraft would impact. Even though he ejected well below the safe ejection envelope for the Escapac seat and with a descent rate, risking his life to insure the jet went towards the baseball field, he couldn't control the left turn the jet took following his vacating it. Food for thought, and something to consider for later, is attempting to keep a sick single-engine aircraft away from populated areas as much as possible. Might it have been possible to keep the aircraft in a rural area and bail out there? Even though the pilot was forced to enter IMC, it was known by all that the jet was heading towards an urban; and with dead-stick being a truly "one-shot deal", it was a big gamble to take, whether anyone consciously knew it was being taken or not. Had the WX been VMC, would Indianapolis have still been an option? Or would another airport in a rural area have been a better place to land. I believe that had VMC prevailed, with physically being able to see population centers, that avoidance of those would've taken a far higher priority. As it was, the task saturation made simply flying the jet a handful to complete. Still, the pilot still had the peace of mind to inquire about avoiding populated areas, even there was no answer to his query from ATC. All of these are good takeaways to garner from this accident for future reference, insofar as the aftermath on the ground is concerned. It happened as it did, but could there have been better options? As I stated before, had the landing been successful, this conversation wouldn't even be occurring.

In an interesting irony, on 26 October 1978, nearly 9 years to the day prior to this accident, a USAF A-7D Corsair crashed into the University of Arizona campus in downtown Tucson while landing at Davis-Monthan AFB, AZ (ICAO: KDMA) following an engine failure, killing 2 civilians on the ground.

MikeDs Final Thoughts: This accident is one of those terrible tragedies whereby the deck was stacked against the pilot from the get go. The pilot of 6207 used every bit of his ability and SA to attempt to overcome the various factors that he faced, all of which were a hinderance and none of which were a help to him. If there is anything to take away from this accident, its that sometimes there will be an EP you'll have to deal with where you're playing catch-up with the situation, and your ability to stay ahead of the game is severely taxed. As the situation progresses, you'll begin finding yourself squeezed tighter and tighter into that square corner, the walls slowly moving in on you. It's up to you to do the best you can to remain out of that square corner for as long as possible, thus insuring that options stay open for you for as long as possible. Because when those options close, and you're in that corner for good, you're now just along for the ride. The pilot of 6207 at least had the option of an ejection seat, and had the A-7D impacted the empty baseball field, this story would be very different. But as it was, that wasn't to be. Even though the pilot was absolved of blame, in our hearts of hearts we as pilots know that we're responsible for where our aircraft end up, even if we had no control over it. This accident is a grim reminder of how we should do our best to insure that Dead Stick Doesn't Lead to a Dead End.

MikeD


The above is not intended to be an undue criticism of the person or persons involved in the incident described. Instead, the analysis presented is intended to further the cause of flight safety and help to reduce accidents and incidents by educating pilots through the sacrifices of others in our profession.

News video of crash aftermath of A-7D 69-6207


Photos: 1. A-7D 69-6207 (courtesy: G Chambers)
2. Newspaper map of 69-6207 flightpath
 

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nice write up...

Here's a bit of history for you... Your accident happened the same year the Navy reclaimed their C-130 that was lost during an aborted take off around 1971-72 from a snow field near McMurdo Sound. If I remember correctly the plane was discovered 15 years after it was originally lost, when about 10' of the tail was sticking up out of the snow... The Navy found the aircraft was worth digging out and saving since it was structurally sound... They had the 10,000TT aircraft flying again after a couple months work...
 
Ugh. That's one of the nightmare scenarios-engine failure in a single above a (relatively) low overcast. Good writeup MikeD.
 
Dang. I remember that. I never heard the pilot was a 117 pilot, but then again that was in '87. Great write up.
 
Thanks for the writeup Mike. Sounds like a really bad situation, probably could have been even worse. Also sounds like a lot of those sims in flight school that seemed like they were unrealistically bad.
 
Mike, thanks for the writeup and thoughts....

Do you have anything to offer on the F-18 that crashed not to long ago out west into a house after losing an engine and the other rolling to idle?

Thanks
 
Wasn't there an F-16 guy who lost an engine and dead-sticked it through an overcast into NAS Glenview, IL about this same time?

1986 maybe?

Kevin
 
Mike, thanks for the writeup and thoughts....

Do you have anything to offer on the F-18 that crashed not to long ago out west into a house after losing an engine and the other rolling to idle?

Thanks

That was a jet from my current squadron. Somewhat of a different situation than this one, generally speaking. That's about all I can say without going into details that aren't for public consumption. The open source info on the mishap covers the high points.
 
For those new to these writeups, you can go to advanced search on the site here. Keyword "accident" and user "MikeD", and search specifically in the Technical Talk forum. This latest accident synopsis of mine is number 11 of the MikeD Accident Synopsis series.
 
Since you likely have a better accident write up of this, maybe you can shed some light on why the pilot crossed the threshold at 2,300 AGL. I know I know, hindsight 20/20 and I have no clue what gliding a lawn dart is like. However, me hearing 2,300 crossing the threshold, in a light GA aircraft that is like being at orbital altitude trying to land. :)

Think the pilot just lost track of his descent/altitude situation? Stopped planning for the descent? Simply over planned in haste? Curious your thoughts of some of those folks here flying these kind of aircraft.

Thanks again Mike, another great write up.
 
Since you likely have a better accident write up of this, maybe you can shed some light on why the pilot crossed the threshold at 2,300 AGL. I know I know, hindsight 20/20 and I have no clue what gliding a lawn dart is like. However, me hearing 2,300 crossing the threshold, in a light GA aircraft that is like being at orbital altitude trying to land. :)

Think the pilot just lost track of his descent/altitude situation? Stopped planning for the descent? Simply over planned in haste? Curious your thoughts of some of those folks here flying these kind of aircraft.

Thanks again Mike, another great write up.

Extreme task saturation, for one. This is the epitome of a single-pilot nightmare scenario.....engine dying, forced into IMC, etc. Read further below in quote. Trust me, descent planning became a low priority overall. There really is no descent planning for an ASR unless you request recommended altitudes per mile from the GCA controller. You're given azimuth corrections on final, but not elevation. You're simply told when to begin descent, and given the MDA and the location of the MAP.

Task saturation explained here:

By any measure, the pilot of 69-6207 had his work more than cut out for him in dealing with this emergency. From losing power in a single-engine jet, to having to work the EP by himself, to being forced into a descent into IMC, from having to manage an instrument approach, to having very little time to get his visual bearings once VMC and......finding himself outside a usable position to land....having to come up with an alternate plan in very little time. All of these factors happening at nearly the same time or closely overlapping, all equalled an extremely large amount of task saturation, even for the best of pilots with the highest of SA.
 
Photos: 1. A-7D 69-6207 (courtesy: G Chambers)
2. Newspaper map of 69-6207 flightpath

Why did the instructor tell him to turn right? That was a vector towards a city, with a stricken aircraft. I hate to monday QB things like this, and I wasn't in a high intensity situation like this. But it seems to me that a left turn would have worked better all the way around.

Maybe I should just keep my mouth shut.
 
In the "Skin/Tin/Ticket" priority list there is still tremendous internal pressure to save the Tin. Been there, done that, landing on a road after a total engine failure. If I had it to do over I would have stalled the plane at the tops of the trees and hoped for the best. As it turned out, nobody got hurt and only minor aircraft damage, but I still think about what could have happened to people on the ground in my effort to save the Tin.
 
In the "Skin/Tin/Ticket" priority list there is still tremendous internal pressure to save the Tin. Been there, done that, landing on a road after a total engine failure. If I had it to do over I would have stalled the plane at the tops of the trees and hoped for the best. As it turned out, nobody got hurt and only minor aircraft damage, but I still think about what could have happened to people on the ground in my effort to save the Tin.

As a wise man put it to me: ass, license, job. In that order.
 
As a wise man put it to me: ass, license, job. In that order.

I was thinking along those lines, too. Insurance will get the plane back, but nothing else. You have to dissipate energy when you touch down. Let the airframe take the hit so your body doesn't. As for the ticket, 91.3(b). What the Feds do NOT like is a pilot-induced emergency -- 91.13, 103, 151, 167, etc.


In words of Sgt. Esteraus, "Hey, let's be careful out there." :rawk:
 
Since MikeD brought it up recently, I re-read this. As a guy who now spends most of his time in a single seat single engined fighter, this is even more chilling to think about. I'd just add a couple thoughts for the room:

1. Totally understand the idea of not deliberately pointing a sick jet towards a populated area. VMC day, that is almost a no-brainer, and I don't think anyone would intentionally do anything otherwise (at least in this scenario). Granted I'm not sure what navigational aids the A-7D was working with, but I'm definitely used to a dearth of precision approach capability. Obviously a big deal on an IMC day, especially in this scenario since you have (at most) one shot at it. However, assuming Indianapolis was the only option with an approach, in hindsight, of course making a controlled ejection over an unpopulated area would have been the better answer. Real time in the jet? I think a consensus of similar aviators would yield a similar response to this one. Controlled ejection option not only carries a higher probability of your own death, but also is not a guarantee of limiting casualties on the ground. If I were to eject in the middle of the desert, there are still enough random houses and dwellings out there that civilian deaths aren't outside the realm of possibility. Much much lower risk of course, but still existent. Conversely, the VFA-106 jet that went into an apartment building a few years ago in VA Beach resulted in no casualties. Much much higher risk I think we would all agree, but not a definite. But more importantly, when these decisions were made, it was not a for sure thing that the jet wouldn't hold up and make it. Controlled ejection carries with it a 100% chance of aircraft loss, and again, might kill you as well. Just some thoughts that I know would be swirling around in my head, and in the absence of hindsight, I don't blame the guy for the decision he made.

2. Most importantly, I think the planning piece is more likely what got us there. Since I don't know what planning happened or didn't happen in this instance, this is more of a general thought. Knowing what pieces of concrete lay within potential gliding distance of your route, what facilities they have, and what approach options they have is pretty much a requirement in a single engined aircraft. Again, not sure what this guy was working with in terms of avionics, but the question worth asking is whether or not there was another suitable field with a compatible approach also within 75 miles. Wright Patt AFB is 104 NM due east of KIND. That would have put the A-7 somewhere between 30-50 NM depending on exact location, though I would guess on the lower end of that figure if on J80. Though still in a populated area, it would have been closer, and potentially with different weather. Again, total Monday AM QB, but the takeaway is that like emergency exit rows, the best option might actually be behind you. I don't know how the decision to press for KIND was made, but relying on ATC to send you to the best place is probably more crapshoot than sound decision making. I related via PM a recent personal event that basically confirmed this……..no offense ATC guys/gals, you just can't be expected to be familiar enough with everyone's needs to make this decision for us. I think everyone has been guilty of lack of planning at some point, due to time constraints or whatever else, but I also think that the place we always need to be is one where if something happens, we already know based on our current position in the world, where to point the nose. I don't know the specifics of this case, so I am not pointing fingers, nor am I suggesting that the guy had any other landing options. But as aviators, it is upon us to always make sure we have an option, and if we don't have one because of factors beyond our control, at least know when those brief windows are and have a backup plan in place if something happens then (i.e. pull the handle without a doubt that it is the right choice). Totally easy to say at 0 ft AGL and 0 kts, but I also agree that taking a sick bird into a populated area covered with pretty hard IMC (given the scenario) wasn't the only option. Whether that was picking a different field or realizing there was just no option to get the jet to terra firma and pulling the handle, it was clearly, with benefit of hindsight, something else.
 
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