# NTSB investigations: Lycoming 0-540 series, 1991

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 FTW92LA052](https://openairdocs.org/ntsb/FTW92LA052.md): Maule M-7-235 · Cottonport, LA · Accident · No injuries · Limited investigation · Final report · Dec 31, 1991 · N81818 · Substantial damage
  > The pilot's failure to compensate for wind conditions. A factor was the crosswind.
- [NTSB FTW92LA041](https://openairdocs.org/ntsb/FTW92LA041.md): Piper PA-28-235 · Houston, TX · Accident · No injuries · Limited investigation · Final report · Dec 9, 1991 · N55839 · Substantial damage
  > The pilot's failure to correctly calculate fuel consumption and the loss of engine power. A factor was the unsuitable terrain.
- [NTSB FTW92LA027](https://openairdocs.org/ntsb/FTW92LA027.md): Cessna R182 · Santa Fe, NM · Accident · No injuries · Limited investigation · Final report · Nov 27, 1991 · N2645C · Substantial damage
  > The right main gear collapsed for undetermined reasons, which resulted in the pilot's loss of directional control during the landing roll.
- [NTSB SEA92LA017](https://openairdocs.org/ntsb/SEA92LA017.md): Piper PA-24-250 · Belt, MT · Accident · No injuries · Limited investigation · Final report · Nov 14, 1991 · N6072P · Substantial damage
  > A blocked fuel vent and an inadequate preflight inspection, which resulted in fuel starvation.
- [NTSB DEN92LA006](https://openairdocs.org/ntsb/DEN92LA006.md): Piper PA-24-250 · Ellicott, CO · Accident · Minor injuries · Limited investigation · Final report · Oct 30, 1991 · N6815P · Substantial damage
  > A power loss for undetermined reasons, the pilot's poorly planned approach, and excessive airspeed. Factors were: the pilot's intentional flight into IMC, accumulation of wing ice and his becoming lost disoriented.
- [NTSB SEA92FA222](https://openairdocs.org/ntsb/SEA92FA222.md): Maule M-5-235C · Moran, WY · Accident · 3 fatal · Field investigation · Final report · Oct 16, 1991 · N19AR · Destroyed
  > The pilot's failure to maintain clearance and altitude from terrain while maneuvering, and his failure to adequately compensate for the wind conditions. Factors contributing to the accident are terrain-induced turbulence, unfavorable winds, gusty high winds,…
- [NTSB LAX92LA015](https://openairdocs.org/ntsb/LAX92LA015.md): Piper PA 24-250 · Linden, CA · Accident · Serious injuries · Limited investigation · Final report · Oct 15, 1991 · N6506P · Substantial damage
  > The pilot in command inaccurately calculating the aircraft's fuel consumption, and not re-fueling the aircraft prior to takeoff from his last departure point. This resulted in a power loss due to fuel exhaustion. A factor in this accident was the unsuitable…
- [NTSB FTW92DPJ02](https://openairdocs.org/ntsb/FTW92DPJ02.md): Piper PA-25 · Warner, OK · Accident · 1 fatal · Final report · Oct 10, 1991 · N8516L · Destroyed
  > The complete loss of engine power for undetermined reason.
- [NTSB MIA92LA010](https://openairdocs.org/ntsb/MIA92LA010.md): Piper PA-32-260 · Vieques, PR · Accident · No injuries · Limited investigation · Final report · Oct 4, 1991 · N563PR · Substantial damage
  > Inadequate aircraft maintenance inspection resulting in the defective muffler which failed and caused an inflight fire.
- [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 SEA91LA247](https://openairdocs.org/ntsb/SEA91LA247.md): Piper PA-24-250 · Arco, ID · Accident · No injuries · Limited investigation · Final report · Sep 19, 1991 · N7985P · Substantial damage
  > Water in the fuel tank and the inability of the pilot to flare for landing after maneuvering to avoid transmission lines in his flight path during the forced landing.
- [NTSB LAX91LA367](https://openairdocs.org/ntsb/LAX91LA367.md): Cessna R182 · Fredonia, AZ · Accident · No injuries · Limited investigation · Final report · Aug 23, 1991 · N9067C · Substantial damage
  > Failure of the carburetor mixture control, resulting in loss of engine power. A factor related to the accident was: lack of compliance with marvel-schebler service bulletin (sb) #A1-78.
- [NTSB ATL91LA158](https://openairdocs.org/ntsb/ATL91LA158.md): Piper PA-24-250 · Waxhaw, NC · Accident · No injuries · Limited investigation · Final report · Aug 14, 1991 · N6262P · Substantial damage
  > The spatial disorientation experienced by the pilot in IMC, his failure to maintain aircraft control, and the exceeding of the design stress limits of the aircraft. Factor(s) in this accident were: the pilot's inadequate preflight planning, the VFR flight…
- [NTSB ATL91LA157](https://openairdocs.org/ntsb/ATL91LA157.md): Piper PA-25-235 · Roxobel, NC · Accident · Minor injuries · Limited investigation · Final report · Aug 13, 1991 · N7658Z · Substantial damage
  > The failure of the left magneto stop pin, resulting in the seizure of the magneto and the failure of the magneto drive gear, and ultimately engine stoppage. A factor in this accident was: the presence of trees at the forced landing area.
- [NTSB NYC91FA194](https://openairdocs.org/ntsb/NYC91FA194.md): Piper PA-32-260 · Monongahela, PA · Accident · 1 fatal · Field investigation · Final report · Aug 1, 1991 · N3722W · Destroyed
  > The failure of the pilot to achieve a proper touchdown on the runway due to diverted attention, pressure, and other psychological condition.
- [NTSB ATL91LA133](https://openairdocs.org/ntsb/ATL91LA133.md): Piper PA-25-235 · Hawkinsville, GA · Accident · No injuries · Limited investigation · Final report · Jul 15, 1991 · N4800P · Substantial damage
  > The pilot's inadequate preflight planning, his failure to refuel the airplane when he observed his fuel supply getting low, and the resultant exhaustion of his fuel supply.
- [NTSB LAX91FA310](https://openairdocs.org/ntsb/LAX91FA310.md): Piper PA-23-250 · Hesperia, CA · Accident · 1 fatal · Field investigation · Final report · Jul 14, 1991 · N515TW · Destroyed
  > The pilot's improper refueling and inadequate preflight which resulted in fuel contamination and the inadvertent stall.
- [NTSB LAX91LA304](https://openairdocs.org/ntsb/LAX91LA304.md): Piper PA24-250 · Temple Bar, AZ · Accident · 1 fatal · Limited investigation · Final report · Jul 10, 1991 · N8142P · Destroyed
  > The pilot's failure to maintain control of the aircraft during an attempted return to runway maneuver and the entry into an inadvertent stall/spin at low altitude. The exact nature of the emergency problem encountered by the pilot is undetermined.
- [NTSB DEN91LA088](https://openairdocs.org/ntsb/DEN91LA088.md): Piper PA-25C-235 · Las Cruces, NM · Accident · No injuries · Limited investigation · Final report · Jul 9, 1991 · N8787L · Substantial damage
  > Power loss due to fuel contamination. A factor was: pilot's inadequate airplane preflight.
- [NTSB MIA91LA168](https://openairdocs.org/ntsb/MIA91LA168.md): Piper PA-32-260 · Culebra, PR · Accident · Minor injuries · Limited investigation · Final report · Jun 25, 1991 · N5513J · Substantial damage
  > Oil exhaustion for undetermined reasons.
- [NTSB MIA91FA155](https://openairdocs.org/ntsb/MIA91FA155.md): Piper PA-24-250 · Long Boat Key, FL · Accident · 2 fatal · Field investigation · Final report · May 31, 1991 · N6376P · Destroyed
  > An inflight loss of control and subsequent collision with the water for unknown reasons.
- [NTSB CHI91DEP05](https://openairdocs.org/ntsb/CHI91DEP05.md): Piper PA-25-235 · Neenah, WI · Accident · No injuries · Final report · May 27, 1991 · N855SD · Substantial damage
  > The pilot in command's failure to attain sufficient airspeed to achieve flight, and his failure to abort the takeoff.
- [NTSB SEA91LA114](https://openairdocs.org/ntsb/SEA91LA114.md): Cessna TR182 · Green River, UT · Accident · No injuries · Limited investigation · Final report · May 17, 1991 · N4664S · Substantial damage
  > Worn brakes. Contributing to the accident was: poor maintenance.
- [NTSB CHI91LA133](https://openairdocs.org/ntsb/CHI91LA133.md): Cessna TR182 · Jackson, MI · Accident · No injuries · Limited investigation · Final report · Apr 15, 1991 · N4359R · Substantial damage
  > Failure to the pilot to assure gear extension. Factors related to the accident were the electrical failure due to a seized alternator and diverted attention by the pilot.
- [NTSB LAX91LA177](https://openairdocs.org/ntsb/LAX91LA177.md): Piper PA28-236 · Gualala, CA · Accident · No injuries · Limited investigation · Final report · Apr 11, 1991 · N2915G · Substantial damage
  > That the pilot failed to properly use the flight controls and to maintain directional control. Contributing to this accident were the gusty crosswind conditions that existed at the time of the accident.
- [NTSB LAX91LA171](https://openairdocs.org/ntsb/LAX91LA171.md): Piper PA24-250 · Casa Grande, AZ · Accident · No injuries · Limited investigation · Final report · Apr 10, 1991 · N7466P · Substantial damage
  > That the pilot failed to maintain proper alignment during the landing roll on the narrow airstrip.
- [NTSB FTW91DPJ01](https://openairdocs.org/ntsb/FTW91DPJ01.md): Piper PA-25 · Spiro, OK · Accident · Serious injuries · Final report · Mar 26, 1991 · N9845P · Destroyed
  > A power loss for undetermined reasons. A factor was the lack of suitable terrain for the forced landing.
- [NTSB BFO91LA032](https://openairdocs.org/ntsb/BFO91LA032.md): Piper PA32-260 · Roanoke, VA · Accident · No injuries · Limited investigation · Final report · Mar 18, 1991 · N4870T · Substantial damage
  > The pilot's failure to maintain terrain clearance on a night visual approach.
- [NTSB MIA91LA081](https://openairdocs.org/ntsb/MIA91LA081.md): Piper PA-32R-301 · Plant City, FL · Accident · No injuries · Limited investigation · Final report · Feb 13, 1991 · N95T · Substantial damage
  > Failure of the pilot to maintain proper alignment during the landing roll, excessive rudder input, and loss of directional control resulting in the collapse of the right main landing gear.
- [NTSB ATL91LA048](https://openairdocs.org/ntsb/ATL91LA048.md): Piper PA-23-250 · Lumberton, NC · Accident · 1 fatal · Limited investigation · Final report · Feb 3, 1991 · N4749P · No damage
  > The pilot suffered a stroke and lost control of the airplane on final approach.
- [NTSB NYC91LA054](https://openairdocs.org/ntsb/NYC91LA054.md): Piper PA-28-236 · Wildwood, NJ · Accident · No injuries · Limited investigation · Final report · Jan 1, 1991 · N81839 · Substantial damage
  > The pilot's failure to apply carburetor heat during the descent which resulted in a loss of engine power due to carburetor ice.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41532'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41532&year=1991

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