# NTSB investigations, 1991, OR

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.

Page 1 of 2 · 51 cases

## Latest cases

- [NTSB SEA92LA027](https://openairdocs.org/ntsb/SEA92LA027.md): Beech 35 · Klamath Falls, OR · Accident · Serious injuries · Limited investigation · Final report · Dec 7, 1991 · N3323V · Substantial damage
  > Pilot factor in that he failed to follow IFR procedures. Factors to the accident were generator failure, operation with known deficiencies with equipment, and poor inflight planning.
- [NTSB SEA92LA020](https://openairdocs.org/ntsb/SEA92LA020.md): Piper PA-28-161 · Ontario, OR · Accident · No injuries · Limited investigation · Final report · Nov 18, 1991 · N9776C · Substantial damage
  > Carburetor icing and the pilot's failure to use carburetor heat. A factor contributing to the accident was the transmission wires.
- [NTSB SEA92LA006](https://openairdocs.org/ntsb/SEA92LA006.md): Cessna C-150M · Woodburn, OR · Accident · Minor injuries · Limited investigation · Final report · Oct 14, 1991 · N9263U · Substantial damage
  > A seized engine exhaust valve. Factors include rough terrain and a collapsed nose gear.
- [NTSB SEA92LA005](https://openairdocs.org/ntsb/SEA92LA005.md): Hughes 269B · Hillsboro, OR · Accident · No injuries · Limited investigation · Final report · Oct 12, 1991 · N9474F · Substantial damage
  > The failure to maintain rotor RPM. Factors include inadequate preflight planning, overconfidence in aircraft's ability, and non-suitable terrain.
- [NTSB SEA92FA002](https://openairdocs.org/ntsb/SEA92FA002.md): Cessna 172G · Miltonfreewater, OR · Accident · 4 fatal · Field investigation · Final report · Oct 6, 1991 · N1372F · Destroyed
  > Inadequate in-flight planning. Factors to the accident were: mountainous terrain, clearance not maintained, lack of total flight experience, and lack of familiarity with geographical area.
- [NTSB SEA91FA255](https://openairdocs.org/ntsb/SEA91FA255.md): Lake LA-250 · Sisters, OR · Accident · 3 fatal · Field investigation · Final report · Sep 29, 1991 · N1404X · Destroyed
  > Improper planning/decision by the pilot(s), and failure to attain sufficient altitude to remain clear of obstructions. Factors related to the accident were: the pilot(s) failure to use all available runway, high density altitude, rising terrain and trees…
- [NTSB SEA91LA257](https://openairdocs.org/ntsb/SEA91LA257.md): Cessna 172E · Burns, OR · Accident · No injuries · Limited investigation · Final report · Sep 27, 1991 · N5680T · Substantial damage
  > The pilot's delay in computing aircraft fuel consumption and his failure to land at an alternate airport along the route of flight. Factors relating to the accident were the tree by the landing area and the improper maintenance adjustment of the right magneto.
- [NTSB SEA91LA253](https://openairdocs.org/ntsb/SEA91LA253.md): Cessna 172N · Chiloquin, OR · Accident · No injuries · Limited investigation · Final report · Sep 26, 1991 · N9403E · Substantial damage
  > The loss of engine power in flight due to improper maintenance inspections. A factor relating to the accident was the rough terrain at the accident site.
- [NTSB SEA91LA239](https://openairdocs.org/ntsb/SEA91LA239.md): Cessna 150M · Hillsboro, OR · Accident · Minor injuries · Limited investigation · Final report · Sep 16, 1991 · N714RK · Substantial damage
  > Inadequate preflight planning, which resulted in an inadequate fuel supply and fuel exhaustion.
- [NTSB SEA91LA233](https://openairdocs.org/ntsb/SEA91LA233.md): Bell 47G · Miltonfreewater, OR · Accident · Minor injuries · Limited investigation · Final report · Sep 12, 1991 · N73865 · Substantial damage
  > Pilot factor in that the pilot failed to insure there was adequate clearance from obstacles for a safe takeoff. A factor to the accident was: the pilot's poor preflight planning/preparation.
- [NTSB SEA91LA232](https://openairdocs.org/ntsb/SEA91LA232.md): Cessna 140 · Gates, OR · Accident · No injuries · Limited investigation · Final report · Sep 11, 1991 · N76006 · Substantial damage
  > The student pilot's excessive remedial action. Factors to the accident were poor supervision by the CFI.
- [NTSB SEA91LA234](https://openairdocs.org/ntsb/SEA91LA234.md): Cessna 182A · Grants Pass, OR · Accident · No injuries · Limited investigation · Final report · Sep 8, 1991 · N3974D · Substantial damage
  > Pilot's selection of unsuitable terrain for a precautionary landing. Factors related to the accident were: motion sickness of the passenger, wet grass runway, the pilot's self-induced pressure to land at the accident airport, and the ditch.
- [NTSB SEA91FA229](https://openairdocs.org/ntsb/SEA91FA229.md): Cessna 150L · Yamhill, OR · Accident · 2 fatal · Field investigation · Final report · Sep 7, 1991 · N19578 · Destroyed
  > Inadequate inflight planning/decisions. Factors to the accident were: an uncontrolled stall, a tail wind, remedial action was not performed, and poor compensation for wind conditions.
- [NTSB SEA91LA231](https://openairdocs.org/ntsb/SEA91LA231.md): Cessna 310F · Corvallis, OR · Accident · No injuries · Limited investigation · Final report · Sep 2, 1991 · N6788X · Substantial damage
  > A disconnected air induction line, and the pilot's inflight decision to execute a 180 degree turn back to the airport. His lack of experience in multi-engine aircraft, his overall lack of familiarity and lack of recent experience in the type aircraft were…
- [NTSB SEA91FA223](https://openairdocs.org/ntsb/SEA91FA223.md): Aerospatiale 350 B1 · Walton, OR · Accident · 3 fatal · Field investigation · Final report · Aug 29, 1991 · N64SF · Destroyed
  > The pilot's failure to maintain clearance from terrain.
- [NTSB SEA91LA225](https://openairdocs.org/ntsb/SEA91LA225.md): Beech 95-B55 · Joseph, OR · Accident · No injuries · Limited investigation · Final report · Aug 28, 1991 · N555TK · Substantial damage
  > A deer that ran onto the runway.
- [NTSB SEA91LA224](https://openairdocs.org/ntsb/SEA91LA224.md): Cessna 172K · Corbett, OR · Accident · Minor injuries · Limited investigation · Final report · Aug 28, 1991 · N6LG · Substantial damage
  > The pilot's improper in-flight planning/decision, his delay in taking remedial action, and his failure to maintain clearance from trees on rising terrain. The weather and terrain conditions were related factors.
- [NTSB SEA91LA217](https://openairdocs.org/ntsb/SEA91LA217.md): Beech B24R · Shady Cove, OR · Accident · Serious injuries · Limited investigation · Final report · Aug 21, 1991 · N2528W · Substantial damage
  > Improper re-installation of an oil line by maintenance personnel, which resulted in an oil leak from a loose line and subsequent seizure of the engine. Uneven terrain in the emergency landing area was a related factor.
- [NTSB SEA91LA212](https://openairdocs.org/ntsb/SEA91LA212.md): Cessna U206F · Nimrod, OR · Accident · No injuries · Limited investigation · Final report · Aug 19, 1991 · N35831 · Substantial damage
  > The fractured crankshaft resulting in engine seizure followed by a forced landing on rough and uneven terrain resulting in separation of the nose gear.
- [NTSB SEA91LA166](https://openairdocs.org/ntsb/SEA91LA166.md): Waco UBF · Lincoln City, OR · Accident · No injuries · Limited investigation · Final report · Aug 11, 1991 · N13075 · Substantial damage
  > Improper planning/decision by the pilot, and his delay in aborting the takeoff. The tailwind & proximity of trees/brush were related factors.
- [NTSB SEA91LA205](https://openairdocs.org/ntsb/SEA91LA205.md): Cessna 182E · Boring, OR · Accident · Minor injuries · Limited investigation · Final report · Aug 10, 1991 · N2935Y · Substantial damage
  > Fuel exhaustion and improper inflight decision by the pilot in command followed by rough terrain during the forced landing. Factors contributing to the accident were a fuel system leak and the pilot's failure to refuel en route.
- [NTSB SEA91FA203](https://openairdocs.org/ntsb/SEA91FA203.md): Christen Industries Pitts S-2B · Scappoose, OR · Accident · 1 fatal · Field investigation · Final report · Aug 10, 1991 · N77PW · Destroyed
  > The pilot's misjudgment of altitude, while performing an aerobatic maneuver, and his failure to maintain ground clearance.
- [NTSB SEA91LA204](https://openairdocs.org/ntsb/SEA91LA204.md): Piper PA-28-181 · Sunriver, OR · Accident · No injuries · Limited investigation · Final report · Aug 9, 1991 · N8444S · Substantial damage
  > The pilot's inadequate compensation for wind conditions, which resulted in a failure to maintain runway alignment. The gusty crosswind was a related factor.
- [NTSB SEA91LA198](https://openairdocs.org/ntsb/SEA91LA198.md): Chance Vought F4U-4 · Chiloquin, OR · Accident · Serious injuries · Limited investigation · Final report · Aug 2, 1991 · N5222V · Destroyed
  > The loss of power due to engine failure, for undetermined reasons.
- [NTSB SEA91LA197](https://openairdocs.org/ntsb/SEA91LA197.md): Cessna 150M · Hillsboro, OR · Accident · No injuries · Limited investigation · Final report · Jul 31, 1991 · N9190U · Destroyed
  > Failure of the pilot to refuel resulting in fuel exhaustion.
- [NTSB SEA91LA193](https://openairdocs.org/ntsb/SEA91LA193.md): Beech N35 · Hillsboro, OR · Accident · No injuries · Limited investigation · Final report · Jul 27, 1991 · N9425Y · Substantial damage
  > Fuel starvation due to the improper use of the fuel selector switch by the pilot and his failure to extend the landing gear for the forced landing.
- [NTSB SEA91LA169](https://openairdocs.org/ntsb/SEA91LA169.md): Beech B19 · Bend, OR · Accident · Minor injuries · Limited investigation · Final report · Jul 14, 1991 · N24576 · Substantial damage
  > Poor preflight planning/preparation by the pilot in command. Factors to the accident were: high density altitude, excessive climb rate, inadequate remedial action, and lack of total flight expereince.
- [NTSB SEA91LA165](https://openairdocs.org/ntsb/SEA91LA165.md): Cessna 172N · Medford, OR · Accident · Minor injuries · Limited investigation · Final report · Jul 9, 1991 · N734MD · Substantial damage
  > An intentional porpoise. Factors include the pilot's psychological condition.
- [NTSB SEA91FA156](https://openairdocs.org/ntsb/SEA91FA156.md): Champion 7AC · Burns, OR · Accident · 2 fatal · Field investigation · Final report · Jul 6, 1991 · N3006E · Substantial damage
  > Improper inflight planning/decision by the student pilot (pilot-in-command), and his failure to maintain adequate airspeed, which resulted in a stall. Factors related to the accident were: physical impairment of the student pilot/owner/operator from carbon…
- [NTSB SEA91LA153](https://openairdocs.org/ntsb/SEA91LA153.md): Derego Avid Flyer/B · Myrtle Creek, OR · Accident · Minor injuries · Limited investigation · Final report · Jul 4, 1991 · N220B · Substantial damage
  > Loss of engine power for an undetermined reason.
- [NTSB SEA91LA151](https://openairdocs.org/ntsb/SEA91LA151.md): Beech C33A · Brookings, OR · Accident · No injuries · Limited investigation · Final report · Jul 2, 1991 · N12EM · Substantial damage
  > The pilot's improper flare for touchdown, and her improper recovery from a bounced landing.
- [NTSB SEA91LA141](https://openairdocs.org/ntsb/SEA91LA141.md): Cessna 172-M · Salem, OR · Accident · No injuries · Limited investigation · Final report · Jun 20, 1991 · N9830V · Substantial damage
  > The pilot's poor in-flight decision and his failure to select a proper touchdown point. Factors include a wet runway, soft terrain and high vegetation.
- [NTSB SEA91LA137](https://openairdocs.org/ntsb/SEA91LA137.md): Hughes 269B · Warrenton, OR · Accident · Minor injuries · Limited investigation · Final report · Jun 19, 1991 · N9380F · Substantial damage
  > The pilot failed to maintain proper rotor speed during a simulated autorotation.
- [NTSB SEA91LA135](https://openairdocs.org/ntsb/SEA91LA135.md): Robinson R-22B · Corvallis, OR · Accident · No injuries · Limited investigation · Final report · Jun 17, 1991 · N202PR · Substantial damage
  > The student pilot's overconfidence in his personal ability and inadquate remedial action. Contributing to the accident was his decision to attempt a solo autoroation.
- [NTSB SEA91LA130](https://openairdocs.org/ntsb/SEA91LA130.md): Hughes 269A-1 · Canby, OR · Accident · Minor injuries · Limited investigation · Final report · Jun 13, 1991 · N8944F · Substantial damage
  > A hard landing after an undetermined loss of power. Factors include an excessive emergency descent rate.
- [NTSB SEA91LA145](https://openairdocs.org/ntsb/SEA91LA145.md): Piper PA-18-150 · Corvallis, OR · Accident · Serious injuries · Limited investigation · Final report · Jun 10, 1991 · N3474Z · Destroyed
  > The pilot displayed poor in-flight planning. A factor to the accident was: the pilot did not maintain a proper altitude over mountainous terrain.
- [NTSB SEA91LA129](https://openairdocs.org/ntsb/SEA91LA129.md): Boeing E75 · Aurora, OR · Accident · No injuries · Limited investigation · Final report · Jun 8, 1991 · N1067N · Substantial damage
  > An improperly adjusted carburetor and improper maintenance. Factors include an earthen berm which the aircraft struck during the landing roll.
- [NTSB SEA91LA117](https://openairdocs.org/ntsb/SEA91LA117.md): Cessna T-210N · Klamath Falls, OR · Accident · Minor injuries · Limited investigation · Final report · May 27, 1991 · N5375A · Substantial damage
  > The loss of engine power due to failure of the number 5 cylinder rod bearing which resulted from lack of lubrication of the main bearing.
- [NTSB SEA91LA104](https://openairdocs.org/ntsb/SEA91LA104.md): Hughes 269B · Grand Ronde, OR · Accident · No injuries · Limited investigation · Final report · May 14, 1991 · N9506F · Substantial damage
  > The pilot inadvertently interfered with the controls.
- [NTSB SEA91LA101](https://openairdocs.org/ntsb/SEA91LA101.md): Cessna 180 · Drewsey, OR · Accident · Minor injuries · Limited investigation · Final report · May 10, 1991 · N51612 · Destroyed
  > The pilot delayed in going-around.
- [NTSB SEA91LA096](https://openairdocs.org/ntsb/SEA91LA096.md): Cessna 150J · Mulino, OR · Accident · No injuries · Limited investigation · Final report · May 1, 1991 · N50488 · Substantial damage
  > The pilot's inadequate remedial action. Factors include nose-gear vibration.
- [NTSB SEA91FA095](https://openairdocs.org/ntsb/SEA91FA095.md): Cessna 150H · Sumpter, OR · Accident · 1 fatal · Field investigation · Final report · Apr 27, 1991 · N970MA · Destroyed
  > The pilot's improper inflight planning and decisions and the pilot's VFR flight into IMC conditions.
- [NTSB SEA91LA080](https://openairdocs.org/ntsb/SEA91LA080.md): Cessna 172A · Hood River, OR · Accident · No injuries · Limited investigation · Final report · Apr 5, 1991 · N9852T · Substantial damage
  > An inadequately planned approach which resulted in a hard landing. Factors to the accident were rough water landing conditions, poor supervision by the CFI, and the overload condition to the float assembly.
- [NTSB SEA91LA072](https://openairdocs.org/ntsb/SEA91LA072.md): Piper PA-28-180 · Wamic, OR · Accident · Serious injuries · Limited investigation · Final report · Apr 1, 1991 · N7119W · Destroyed
  > The pilot's selection of an empty fuel tank for takeoff.
- [NTSB SEA91LA067](https://openairdocs.org/ntsb/SEA91LA067.md): Clyde L. King Osprey II · Aurora, OR · Accident · No injuries · Limited investigation · Final report · Mar 16, 1991 · N69CK · Substantial damage
  > A loss of engine power due to fuel starvation because of an inadequate component and inadequate fuel system design.
- [NTSB SEA91LA066](https://openairdocs.org/ntsb/SEA91LA066.md): Hughes 369D · Roseburg, OR · Accident · No injuries · Limited investigation · Final report · Mar 11, 1991 · N1088L · Substantial damage
  > A loss of engine power for undetermined reasons. A factor related to the accident was: the lack of a suitable area for an emergency landing.
- [NTSB SEA91FA059](https://openairdocs.org/ntsb/SEA91FA059.md): Cessna 172 · Oregon City, OR · Accident · 1 fatal · Field investigation · Final report · Feb 28, 1991 · N7119T · Destroyed
  > The pilot's failure to attain proper airspeed before takeoff. Factors relating to the accident were the binding brake, the uphill grass airstrip, the tail wind weather conditions, and the improper annual inspection that was just completed on the aircraft.
- [NTSB SEA91FA057](https://openairdocs.org/ntsb/SEA91FA057.md): Cessna 182J · Glendale, OR · Accident · 3 fatal · Field investigation · Final report · Feb 22, 1991 · N3154F · Destroyed
  > The pilot's failure to use all available runway for this landing, aggravated by his failure to initiate a go-around after misjudging the proper touchdown point and landing with a tailwind.
- [NTSB SEA91FA054](https://openairdocs.org/ntsb/SEA91FA054.md): Piper PA-15 · Cottage Grove, OR · Accident · 2 fatal · Field investigation · Final report · Feb 20, 1991 · N4518H · Substantial damage
  > The pilot did not maintain an adequate airspeed. Factors to the accident were: a dark night condition and an uncontrolled stall/spin.
- [NTSB SEA91LA044](https://openairdocs.org/ntsb/SEA91LA044.md): Schweizer Hughes 269C · Princeton, OR · Accident · No injuries · Limited investigation · Final report · Jan 19, 1991 · N75070 · Substantial damage
  > The pilot's attempt to hover out of ground effect at a density altitude and gross weight in tailwind weather conditions that exceeded the aircraft performance limits. Factors relating to the accident were the high density altitude and tailwind weather…

Next page: https://openairdocs.org/ntsb.md?year=1991&state=OR&page=2

## 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" = 'OR' AND c."eventCountry" = 'USA'
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

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

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