# NTSB investigations, 1991, AL

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB ATL92FA033](https://openairdocs.org/ntsb/ATL92FA033.md): Beech C23 · Lineville, AL · Accident · 2 fatal · Field investigation · Final report · Dec 29, 1991 · N9304S · Destroyed
  > The pilot continued VFR into IMC conditions where he collided with trees and terrain. Factors in this accident were: low clouds, obscured terrain, and the pilot's inadequate prelflight planning.
- [NTSB ATL92LA018](https://openairdocs.org/ntsb/ATL92LA018.md): Globe GC-1D · Brewton, AL · Accident · Serious injuries · Limited investigation · Final report · Oct 28, 1991 · N78006 · Substantial damage
  > A blockage of the fuel vent system which prevented the pilot from topping off the fuel system. A factor in this accident was the inadequate design by the manufacturer of the fuel vent system.
- [NTSB ATL92FA013](https://openairdocs.org/ntsb/ATL92FA013.md): Beech 58 · Pelham, AL · Accident · Serious injuries · Field investigation · Final report · Oct 22, 1991 · N99CK · Substantial damage
  > The pilot's failure to correct the position of the fuel selector before takeoff, and her inattentiveness to fuel consumption during the flight, which resulted in fuel starvation. Factors were the non-performance of engine out emergency procedures and the…
- [NTSB ATL92LA010](https://openairdocs.org/ntsb/ATL92LA010.md): Beech A36 · Selma, AL · Accident · Minor injuries · Limited investigation · Final report · Oct 17, 1991 · N3735Y · Substantial damage
  > The fatigue failure of the engine crankshaft counterweight blade, which resulted from excessive wear of the counterweight pin bushings, due to corrosion from an unknown source.
- [NTSB ATL92LA007](https://openairdocs.org/ntsb/ATL92LA007.md): Kaman HH-43B/F · Mt. Vernon, AL · Accident · No injuries · Limited investigation · Final report · Oct 14, 1991 · N55714 · Substantial damage
  > A loss of engine power for undetermined reasons. A factor in the accident was the lack of a suitable landing site.
- [NTSB ATL92LA006](https://openairdocs.org/ntsb/ATL92LA006.md): Grumman G164 · Bay Minette, AL · Accident · No injuries · Limited investigation · Final report · Oct 14, 1991 · N590Y · Substantial damage
  > The rough/uneven runway condition caused by the sink hole.
- [NTSB ATL92LA005](https://openairdocs.org/ntsb/ATL92LA005.md): Cessna 182 · Pinson, AL · Accident · No injuries · Limited investigation · Final report · Oct 13, 1991 · N9342X · Substantial damage
  > The failure of the pilot to visually detect and attain proper alignment with the runway.
- [NTSB ATL92LA003](https://openairdocs.org/ntsb/ATL92LA003.md): Cessna 320 · Gadsden, AL · Accident · Minor injuries · Limited investigation · Final report · Oct 6, 1991 · N4726X · Substantial damage
  > Fuel starvation due to incorrect fuel line installations, an inoperative fuel boost pump, and incorrect pilot procedure. A factor in this accident was the pilot's intentional operation with a known fuel system deficiency.
- [NTSB ATL91LA178](https://openairdocs.org/ntsb/ATL91LA178.md): Piper PA-25-235 · Brewton, AL · Accident · Serious injuries · Limited investigation · Final report · Sep 21, 1991 · N7509Z · Destroyed
  > The inflight separation of the left wing resulting from corrosion of the wing front spar fitting assembly. A factor was inadequate maintenance procedures.
- [NTSB ATL91LA177](https://openairdocs.org/ntsb/ATL91LA177.md): Cessna 150G · Pleasant Grove, AL · Accident · Minor injuries · Limited investigation · Final report · Sep 21, 1991 · N4096J · Substantial damage
  > The pilot's failure to refuel the airplane prior to the last takeoff resulting in an inadequate fuel supply for the flight.
- [NTSB ATL91FA176](https://openairdocs.org/ntsb/ATL91FA176.md): Cessna C-172N · Alabaster, AL · Accident · 2 fatal · Field investigation · Final report · Sep 21, 1991 · N700CH · Substantial damage
  > The pilot's failure to maintain flying speed which resulted in an unintentional stall and collision with the ground. A factor was the pilot's use of unprescribed drugs.
- [NTSB ATL91LA174](https://openairdocs.org/ntsb/ATL91LA174.md): Cessna 150J · Wilsonville, AL · Accident · No injuries · Limited investigation · Final report · Sep 14, 1991 · N6866G · Substantial damage
  > The pilot's inadequate preflight planning, and his improper use of flaps during the takeoff roll. Factors in the accident were: the high density altitude, the rising runway conditions, and the departure end obstructions at the airstrip.
- [NTSB ATL91LA145](https://openairdocs.org/ntsb/ATL91LA145.md): Cessna 188B · Monroeville, AL · Accident · No injuries · Limited investigation · Final report · Jul 31, 1991 · N9106G · Substantial damage
  > The pilot's misjudgment of the clearance between the airplane and the electrical transmission wire. A factor was the hazy visibility.
- [NTSB ATL91LA143](https://openairdocs.org/ntsb/ATL91LA143.md): Hinton Kitfox · Killen, AL · Accident · No injuries · Limited investigation · Final report · Jul 28, 1991 · N174PH · Substantial damage
  > Weather conditions conducive to carburetor icing. A factor was the lack of a carburetor heat system on the engine.
- [NTSB ATL91FA138](https://openairdocs.org/ntsb/ATL91FA138.md): Taylorcraft BC12-D · Mobile, AL · Accident · 1 fatal · Field investigation · Final report · Jul 20, 1991 · N96802 · Destroyed
  > The failure of the pilot to maintain airspeed and his subsequent inadvertent stall during his attempt to return to the departure runway. A factor was the loss of engine power for undetermined reasons.
- [NTSB ATL91LA129](https://openairdocs.org/ntsb/ATL91LA129.md): Cessna 210D · Hazel Green, AL · Accident · Minor injuries · Limited investigation · Final report · Jul 13, 1991 · N3742Y · Substantial damage
  > The inadvertent control interference caused when a parachute line became entangled in the right elevator trim tab, after the student jumper exited the airplane.
- [NTSB DCA91MA042](https://openairdocs.org/ntsb/DCA91MA042.md): Beech C99 · Birmingham, AL · Accident · 13 fatal · Major investigation · Final report · Jul 10, 1991 · N7217L · Destroyed
  > The decision of the captain to initiate and continue an instrument approach into clearly identified thunderstorm activity, resulting in a loss of control of the airplane from which the flightcrew was unable to recover and subsequent collision with obstacles…
- [NTSB ATL91LA119](https://openairdocs.org/ntsb/ATL91LA119.md): Cessna 188 · Muscle Shoals, AL · Accident · Serious injuries · Limited investigation · Final report · Jun 29, 1991 · N48430 · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB ATL91LA118](https://openairdocs.org/ntsb/ATL91LA118.md): Maule MXT-180 · Mobile, AL · Accident · No injuries · Limited investigation · Final report · Jun 23, 1991 · N9217T · Substantial damage
  > The pilot's failure to properly compensate for wind conditions. A factor to this accident was the gusting winds.
- [NTSB ATL91LA114](https://openairdocs.org/ntsb/ATL91LA114.md): Cessna 182R · Dothan, AL · Accident · No injuries · Limited investigation · Final report · Jun 18, 1991 · N851CA · Substantial damage
  > Lack of supervision by the flight instructor who allowed a dual student to make a hard landing.
- [NTSB ATL91LA100](https://openairdocs.org/ntsb/ATL91LA100.md): Cessna 177B · Huntsville, AL · Accident · No injuries · Limited investigation · Final report · May 27, 1991 · N19823 · Substantial damage
  > The pilot's failure to remove the control lock prior to attempting flight and his failure to follow the 'before takeoff' checklist. A factor in the accident was the pilot's diverted attention.
- [NTSB ATL91LA097](https://openairdocs.org/ntsb/ATL91LA097.md): Beech 23 · Dothan, AL · Accident · No injuries · Limited investigation · Final report · May 18, 1991 · N3549R · Substantial damage
  > The failure of the cylinder head because of previous overheated operations. Factors in the accident were the pilot's inaccurate approach which resulted in the loss of directional control and subsequent swerve into the fence.
- [NTSB ATL91LA093](https://openairdocs.org/ntsb/ATL91LA093.md): Cessna 172I · Clanton, AL · Accident · Minor injuries · Limited investigation · Final report · May 14, 1991 · N46240 · Substantial damage
  > Failure of the pilot to maintain control of the aircraft during a go-around. The pilot's lack of experience was a related factor.
- [NTSB ATL91LA086](https://openairdocs.org/ntsb/ATL91LA086.md): Cessna 182B · Elberta, AL · Accident · No injuries · Limited investigation · Final report · Apr 20, 1991 · N7202E · Substantial damage
  > The pilot's failure to apply carburetor heat. Factors were weather conditions for the formation of induction ice, and the soft terrain.
- [NTSB ATL91LA085](https://openairdocs.org/ntsb/ATL91LA085.md): Piper PA-28R-200 · Bessemer, AL · Accident · No injuries · Limited investigation · Final report · Apr 20, 1991 · N503G · Substantial damage
  > Rupture of a high-time, rubber, oil cooler hose, which resulted in a loss of engine oil, oil exhaustion, and seizure of the engine.
- [NTSB ATL91FA069](https://openairdocs.org/ntsb/ATL91FA069.md): Piper PA-28R-200 · Ashland, AL · Accident · 4 fatal · Field investigation · Final report · Mar 22, 1991 · N7523C · Destroyed
  > Continued VFR flight by the pilot into instrument meteorological conditions (IMC), and his failure to maintain sufficience altitude/clearance above the wooded terrain. Factors related to the accident were: the adverse weather conditions, high terrain, and the…
- [NTSB ATL91LA066](https://openairdocs.org/ntsb/ATL91LA066.md): Benson B8M · Hartselle, AL · Accident · 1 fatal · Limited investigation · Final report · Mar 16, 1991 · N6572K · Substantial damage
  > The improper installation of the main rotor bearing block by the owner/pilot which resulted in the separation of the main rotor system.
- [NTSB ATL91LA058](https://openairdocs.org/ntsb/ATL91LA058.md): Aeronca 11AC · Union Springs, AL · Accident · No injuries · Limited investigation · Final report · Feb 16, 1991 · N85880 · Substantial damage
  > The pilot's failure to maintain directional control of the airplane during the landing roll, which resulted in an inadvertent ground swerve.
- [NTSB ATL91FA052](https://openairdocs.org/ntsb/ATL91FA052.md): Piper PA-31-350 · Munford, AL · Accident · 4 fatal · Field investigation · Final report · Feb 7, 1991 · N27818 · Destroyed
  > The pilot attempting visual flight in instrument meteorological conditions below the minimum safe altitude for terrain clearance. Contributing factors were the low ceiling and mountainous terrain.
- [NTSB ATL91FA040](https://openairdocs.org/ntsb/ATL91FA040.md): Rockwell 114 · Bessemer, AL · Accident · 4 fatal · Field investigation · Final report · Jan 20, 1991 · N4827W · Destroyed
  > Failure of the pilot to follow instrument flight rules (IFR) and maintain the minimum descent altitude (mda) during the VOR approach. Factors related to the accident were: darkness and the adverse weather conditions.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE year(c."eventDate") = 1991
  AND c."eventStateOrRegion" = 'AL' AND c."eventCountry" = 'USA'
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?state=AL&year=1991

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.