# NTSB investigations: Enroute

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 272 of 718 · 35,885 cases

## Cases, newest first

- [NTSB SEA90FA166](https://openairdocs.org/ntsb/SEA90FA166.md): Piper PA-24-250 · Salem, OR · Accident · 2 fatal · Field investigation · Final report · Aug 27, 1990 · N8103P · Destroyed
  > The pilot allowed the design stress limits of the aircraft to be exceeded. Factors related to the accident concerned inadvertent flight by the pilot into known adverse weather conditions.
- [NTSB SEA90LA169](https://openairdocs.org/ntsb/SEA90LA169.md): Cessna T210N · Florence, OR · Accident · Minor injuries · Limited investigation · Final report · Aug 26, 1990 · N1911U · Substantial damage
  > The failure of an engine cylinder head. Collision with a log during the landing was a factor related to the accident.
- [NTSB FTW90LA165](https://openairdocs.org/ntsb/FTW90LA165.md): Cessna 150M · Kerrville, TX · Accident · No injuries · Limited investigation · Final report · Aug 25, 1990 · N704XJ · Substantial damage
  > The total loss of engine power due to fuel exhaustion, which resulted from the pilot's failure to refuel. Contributing to the accident was the pilot becoming lost.
- [NTSB CHI90LA243](https://openairdocs.org/ntsb/CHI90LA243.md): Ercoupe Ercoupe 415-C · Hamburg, MI · Accident · Serious injuries · Limited investigation · Final report · Aug 25, 1990 · N2977H · Substantial damage
  > Powerplant failure due to foreign object in the carburetor resulting in fuel starvation.
- [NTSB NYC90LA222](https://openairdocs.org/ntsb/NYC90LA222.md): Piper PA-31-350 · Norridgewock, ME · Accident · No injuries · Limited investigation · Final report · Aug 24, 1990 · N250SC · Substantial damage
  > The pilot's improper preflight and inflight planning of the fuel, which resulted in fuel exhaustion and forced landing.
- [NTSB DEN90FA172](https://openairdocs.org/ntsb/DEN90FA172.md): Aerospatiale SA316B · Meeteetse, WY · Accident · Serious injuries · Field investigation · Final report · Aug 20, 1990 · N83776 · Destroyed
  > A main rotor head blade dampener failure. A factor in the accident was the subsequent failure of a blade restraining cable.
- [NTSB BFO90DID01](https://openairdocs.org/ntsb/BFO90DID01.md): Cessna 172RG · Onancock, VA · Accident · 2 fatal · Final report · Aug 20, 1990 · N6599R · Substantial damage
  > The inflight loss of control because the pilot experienced spatial disorientation. Other factors related to the accident are VFR flight into IMC, night conditions.
- [NTSB LAX90FA292](https://openairdocs.org/ntsb/LAX90FA292.md): Piper PA-28RT-201 · Long Beach, CA · Accident · 4 fatal · Field investigation · Final report · Aug 19, 1990 · N3054N · 2 aircraft · Destroyed
  > The inadequate visual outlook of the pilots of the Cessna 172P and their failure to see and avoid the Piper pa- 28RT-201. Contributing to the accident was the azimuth and angle of the sun which was in a position at the time of the accident to impair the scan…
- [NTSB NYC90DHD03](https://openairdocs.org/ntsb/NYC90DHD03.md): Heinrichs Rand KR-2 · Barnegat, NJ · Accident · Minor injuries · Final report · Aug 17, 1990 · N63BH · Destroyed
  > The loss of engine power due to magneto failure.
- [NTSB LAX90LA290](https://openairdocs.org/ntsb/LAX90LA290.md): Cessna T210M · Soda Springs, CA · Accident · Minor injuries · Limited investigation · Final report · Aug 17, 1990 · N732VS · Substantial damage
  > Engine failure due to inadequate vapor recovery system (inadequate aircraft maintenance/service) and incorrect fuel grade. A factor in the accident was unsuitable terrain.
- [NTSB BFO90LA071](https://openairdocs.org/ntsb/BFO90LA071.md): Piper PA-24-180 · Charleston, WV · Accident · Minor injuries · Limited investigation · Final report · Aug 17, 1990 · CGBEG · Substantial damage
  > Fuel exhaustion due to fatigue failure of a fuel line. Factors related to the accident were: lack of suitable terrain and obstructions (trees & utility pole) in the emergency landing area.
- [NTSB LAX90LA289](https://openairdocs.org/ntsb/LAX90LA289.md): Cessna 172M · Goleta, CA · Accident · Minor injuries · Limited investigation · Final report · Aug 16, 1990 · N80981 · Destroyed
  > The loss of engine oil pressure for undetermined reasons.
- [NTSB CHI90FA233](https://openairdocs.org/ntsb/CHI90FA233.md): Piper PA-23-160 · Odell, IL · Accident · No injuries · Field investigation · Final report · Aug 16, 1990 · N4231P · Substantial damage
  > A loss of left engine power due to oil accumulation in the right magneto and a non-usable spark lead from the left magneto. In addition, the right engine was unable to provide adequate power to maintain altitude due to a partial blockage in the carburetor by…
- [NTSB DEN90DQA03](https://openairdocs.org/ntsb/DEN90DQA03.md): Piper PA-25-235 · Fabens, TX · Accident · No injuries · Final report · Aug 15, 1990 · N7178Z · Substantial damage
  > Engine failure due to shorting of the magneto's 'p' lead, and failure of the exhaust manifold.
- [NTSB ATL90LA159](https://openairdocs.org/ntsb/ATL90LA159.md): Cessna 172 · Ridge Spring, SC · Accident · No injuries · Limited investigation · Final report · Aug 13, 1990 · N66068 · Substantial damage
  > The failure of the maintenance facility/owner to follow standard preventive maintenance procedures. A factor was the pilot's failure to extend the flaps during the forced landing.
- [NTSB LAX90LA285](https://openairdocs.org/ntsb/LAX90LA285.md): Taylorcraft DC-65 · Morgan Hill, CA · Accident · Minor injuries · Limited investigation · Final report · Aug 12, 1990 · N67755 · Substantial damage
  > Fuel exhaustion, due the certified flight instructors improper preflight inspection.
- [NTSB CHI90DER06](https://openairdocs.org/ntsb/CHI90DER06.md): Mooney M20C · Webster, WI · Accident · 1 fatal · Final report · Aug 12, 1990 · N9468V · Destroyed
  > The pilot's failure to maintain control of the airplane. Factors related to the accident were: the dark night, the pilot's alcohol impairment, and his night flying restriction.
- [NTSB ANC90FA142](https://openairdocs.org/ntsb/ANC90FA142.md): Piper PA-18 · Anchorage, AK · Accident · No injuries · Field investigation · Final report · Aug 12, 1990 · N7087B · Substantial damage
  > The flight instructor ran the right tank dry. Contributing to the accident were improper in-flight planning and decisions.
- [NTSB SEA90LA160](https://openairdocs.org/ntsb/SEA90LA160.md): Alfred Stevens KEN Rand KR-2 · Ellensburg, WA · Accident · No injuries · Limited investigation · Final report · Aug 11, 1990 · N232CM · Substantial damage
  > The pilot did not maintain a proper altitude above the terrain or visual lookout which resulted in a collision with a transmission wire.
- [NTSB LAX90LA284](https://openairdocs.org/ntsb/LAX90LA284.md): Mooney M20C · Lodi, CA · Accident · No injuries · Limited investigation · Final report · Aug 11, 1990 · N9236M · Destroyed
  > The pilot to continue his flight with a unresolved deficiency in the aircraft powerplant resulting in total failure of the powerplant.
- [NTSB DEN90LA169](https://openairdocs.org/ntsb/DEN90LA169.md): Piper PA-24-250 · Bingham, NM · Accident · No injuries · Limited investigation · Final report · Aug 11, 1990 · N5470P · Substantial damage
  > The fuel exhaustion induced power loss. Factors were the pilot's failure to refuel and the unsuitable terrain in which the forced landing was performed.
- [NTSB ANC90LA139](https://openairdocs.org/ntsb/ANC90LA139.md): Cessna 180 · Soldotna, AK · Accident · No injuries · Limited investigation · Final report · Aug 11, 1990 · N52098 · Substantial damage
  > Loss of engine power due to fuel exhaustion caused by inflight siphoning of fuel.
- [NTSB SEA90LA159](https://openairdocs.org/ntsb/SEA90LA159.md): Cessna 182H · Wenatchee, WA · Accident · Serious injuries · Limited investigation · Final report · Aug 10, 1990 · N2473X · Substantial damage
  > Improper installation of the oil filter gasket by maintenance personnel resulting in loss of engine oil and seizure of the engine.
- [NTSB LAX90LA288](https://openairdocs.org/ntsb/LAX90LA288.md): Cessna 421 · Concord, CA · Accident · No injuries · Limited investigation · Final report · Aug 9, 1990 · N76SH · Substantial damage
  > The pilot's failure to follow the electrical system failure checklist. Contributing to this accident was the total electrical failure for undetermined reasons and the landing gear being unlocked.
- [NTSB LAX90DVD01](https://openairdocs.org/ntsb/LAX90DVD01.md): Convair L-13A · Hayward, CA · Accident · Serious injuries · Final report · Aug 9, 1990 · N13NH · Destroyed
  > Absence of a oil system fitting cap.
- [NTSB FTW90LA156](https://openairdocs.org/ntsb/FTW90LA156.md): Boeing B-737-300 · Corpus Christi, TX · Accident · Serious injuries · Limited investigation · Final report · Aug 9, 1990 · N327SW · No damage
  > The airplane's unexpected encounter with clear air turbulence.
- [NTSB CHI90DTG05](https://openairdocs.org/ntsb/CHI90DTG05.md): Piper PA-25-235 · Sykeston, ND · Accident · No injuries · Final report · Aug 9, 1990 · N4471Y · Substantial damage
  > The pilot's inadequate aircraft preflight. Contributing to the accident was the lack of suitable terrain on which to perform a forced landing.
- [NTSB ANC90LA138](https://openairdocs.org/ntsb/ANC90LA138.md): Helio HE-3/H-295 · Arctic Village, AK · Accident · No injuries · Limited investigation · Final report · Aug 9, 1990 · N6481V · Substantial damage
  > The pilot in commands improper flare during a forced landing resulting in a hard landing.
- [NTSB CHI90LA217](https://openairdocs.org/ntsb/CHI90LA217.md): Harper Volksplane WE-1 · Kingman, KS · Accident · Serious injuries · Limited investigation · Final report · Aug 8, 1990 · N4509 · Substantial damage
  > Failure of the pilot in command to maintain airspeed resulting in an inadvertent stall and spin.
- [NTSB NYC90LA189](https://openairdocs.org/ntsb/NYC90LA189.md): Bell 206 · Athens, OH · Accident · Serious injuries · Limited investigation · Final report · Aug 7, 1990 · N49651 · Substantial damage
  > The pilot's failure to visually acquire and maintain clearance from the powerline(s). Contributing to the accident was the adverse weather conditions.
- [NTSB LAX90LA280](https://openairdocs.org/ntsb/LAX90LA280.md): Balloon Works Firefly 9 · Napa, CA · Accident · Serious injuries · Limited investigation · Final report · Aug 7, 1990 · N9090M · Destroyed
  > The flight's encounter with a probable microburst weather phenomena with down drafts and winds beyond the performance capability of the Balloon.
- [NTSB LAX90LA279](https://openairdocs.org/ntsb/LAX90LA279.md): Balloon Works Firefly 8 · Napa, CA · Accident · Serious injuries · Limited investigation · Final report · Aug 7, 1990 · N9023Z · No damage
  > The flight's encounter with a probable microburst weather phenomena with down drafts and winds beyond the performance capability of the Balloon.
- [NTSB LAX90LA278](https://openairdocs.org/ntsb/LAX90LA278.md): Aerostar S-66A · Napa, CA · Accident · Serious injuries · Limited investigation · Final report · Aug 7, 1990 · N3595M · Substantial damage
  > Flight's encounter with a probable microburst weather phenomena with down drafts and winds beyond the performance capability of the balloon.
- [NTSB LAX90LA277](https://openairdocs.org/ntsb/LAX90LA277.md): Thunder and Colt AX9-140 SLI · Napa, CA · Accident · Serious injuries · Limited investigation · Final report · Aug 7, 1990 · N9112R · Substantial damage
  > Flight's encounter with a probable microburst weather phenomena with down drafts and winds beyond the performance capability of the balloon.
- [NTSB ANC90LA132](https://openairdocs.org/ntsb/ANC90LA132.md): Cessna C-T210 · Sleeper Bay, AK · Accident · No injuries · Limited investigation · Final report · Aug 6, 1990 · N6016N · Substantial damage
  > Improper fuel tank selection.
- [NTSB MIA90FA166](https://openairdocs.org/ntsb/MIA90FA166.md): Rockwell 680-E · Titusville, FL · Accident · Serious injuries · Field investigation · Final report · Aug 5, 1990 · N599BB · Destroyed
  > The pilot's decision to continue the flight with a known unairworthy mechanical condition resulting in a subsequent loss of engine power and forced landing.
- [NTSB BFO90LA072](https://openairdocs.org/ntsb/BFO90LA072.md): Cessna A152 · Hyden, KY · Accident · 1 fatal · Limited investigation · Final report · Aug 5, 1990 · N4728A · Destroyed
  > The pilot intentionally continuing VFR flight into instrument meteorological conditions which resulted in spatial disorientation and loss of aircraft control. Factors contributing to the accident were the thunderstorms and the pilot's lack of instrument…
- [NTSB CHI90DTG01](https://openairdocs.org/ntsb/CHI90DTG01.md): Cessna 188 · Dazey, ND · Accident · No injuries · Final report · Aug 4, 1990 · N8024V · Substantial damage
  > A blockage of the fuel tank vent line. Contributing to the accident was the unsuitable terrain on which the pilot had to make the forced landing.
- [NTSB ATL90LA155](https://openairdocs.org/ntsb/ATL90LA155.md): Cessna 172L · Greensboro, AL · Accident · No injuries · Limited investigation · Final report · Aug 4, 1990 · N4386Q · Substantial damage
  > The pilot's failure to maintain proper airspeed and attain the proper touchdown point during the emergency landing.
- [NTSB ANC90FA134](https://openairdocs.org/ntsb/ANC90FA134.md): Helio Courier H-295 · 40 Se Bettles, AK · Accident · 3 fatal · Field investigation · Final report · Aug 4, 1990 · N6493V · Destroyed
  > The failure and separation of the #5 connecting rod bolt and cap which resulted in the rupture of the engine housing and subsequent engine fire due to oil spillage, and an inadequately mounted vertical fin/stabilator. A contributing factor was the inadequate…
- [NTSB SEA90LA156](https://openairdocs.org/ntsb/SEA90LA156.md): Mcdonnell Douglas DC-10-10 · Coeur D'Alene, ID · Accident · Serious injuries · Limited investigation · Final report · Aug 3, 1990 · N1804U · No damage
  > Passenger spilling a hot cup of coffee in her lap while the flight was in cruise flight.
- [NTSB DEN90LA167](https://openairdocs.org/ntsb/DEN90LA167.md): Mooney M20C · Roswell, NM · Accident · No injuries · Limited investigation · Final report · Aug 3, 1990 · N5677Q · Substantial damage
  > The intentional wheels up landing in soft terrain. Contributing to the accident was the fuel starvation induced power loss, failure of the pilot to switch fuel tanks, improper positioning of the fuel selector during attempted restarts, and the soft terrain.
- [NTSB LAX90LA272](https://openairdocs.org/ntsb/LAX90LA272.md): Stinson L-5B · Victorville, CA · Accident · Minor injuries · Limited investigation · Final report · Aug 2, 1990 · N1718M · Substantial damage
  > The oil gauge line 'b' nut backed off, and the pilot failed to maintain airspeed.
- [NTSB ANC90LA129](https://openairdocs.org/ntsb/ANC90LA129.md): Piper PA-31 · Naked Island, AK · Accident · No injuries · Limited investigation · Final report · Aug 2, 1990 · N27425 · Substantial damage
  > A left engine failure for undetermined reasons.
- [NTSB SEA90LA153](https://openairdocs.org/ntsb/SEA90LA153.md): Piper PA-23-250 · Burns, OR · Accident · Minor injuries · Limited investigation · Final report · Aug 1, 1990 · N681M · Substantial damage
  > Loss of engine power due to a blocked fuel line and the operation of the aircraft in an non-airworthy condition by the PIC.
- [NTSB SEA90LA152](https://openairdocs.org/ntsb/SEA90LA152.md): Boson Starduster TOO · Pinedale, WY · Accident · No injuries · Limited investigation · Final report · Aug 1, 1990 · N18YB · Substantial damage
  > The loss of engine power due to failure of the ignition coil, and the lack of suitable terrain for a forced landing. Failure of the ignition coil resulting in a total loss of engine power. The lack of suitable terrain was a factor related to the accident.
- [NTSB LAX90LA264](https://openairdocs.org/ntsb/LAX90LA264.md): Rolladen-Schneider LS3-A · Sparks, NV · Accident · Minor injuries · Limited investigation · Final report · Jul 31, 1990 · N34AZ · Destroyed
  > The inability of the pilot to maintain control of the glider as a result of injuries sustained during an inflight encounter with turbulence. Contributing to the accident was turbulent weather condition encountered.
- [NTSB CHI90DER03](https://openairdocs.org/ntsb/CHI90DER03.md): Bell 47G3B1 · Coon Rapids, MN · Accident · No injuries · Final report · Jul 31, 1990 · N4990H · Substantial damage
  > The pilot-in-command's inaccurate fuel consumption calculations and misjudgement of his fuel supply.
- [NTSB BFO90LA066](https://openairdocs.org/ntsb/BFO90LA066.md): Champion 7EC · Peebles, OH · Accident · Minor injuries · Limited investigation · Final report · Jul 31, 1990 · N8575E · Substantial damage
  > Improper use of carburetor heat.
- [NTSB CHI90LA209](https://openairdocs.org/ntsb/CHI90LA209.md): Cessna 150 · Oshkosh, WI · Accident · No injuries · Limited investigation · Final report · Jul 30, 1990 · N11948 · Substantial damage
  > Loss of engine power for an undetermined reason.

Next page: https://openairdocs.org/ntsb-phases/400/cases.md?page=273

## The whole list in SQL

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

```sql
WITH phase_names(main, name) AS (VALUES (100, 'Prior to flight'), (150, 'Standing'), (200, 'Pushback/towing'), (250, 'Taxi'), (300, 'Takeoff'), (350, 'Initial climb'), (400, 'Enroute'), (450, 'Maneuvering'), (500, 'Approach'), (550, 'Landing'), (600, 'Emergency descent'), (650, 'Uncontrolled descent'), (700, 'Post-impact'), (750, 'After landing'), (800, 'Other'), (990, 'Unknown')),
  crosswalk(code, main, name) AS (VALUES (500, 150, 'Standing'), (501, 150, 'Standing - pre-flight'), (502, 150, 'Standing - starting engine(s)'), (503, 150, 'Standing - engine(s) operating'), (504, 150, 'Standing - engine(s) not operating'), (505, 150, 'Standing - idling rotors'), (510, 250, 'Taxi'), (511, 200, 'Taxi - pushback/tow'), (512, 250, 'Taxi - to takeoff'), (513, 250, 'Taxi - from landing'), (514, 250, 'Taxi - aerial'), (520, 300, 'Takeoff'), (521, 300, 'Takeoff - roll/run'), (522, 350, 'Takeoff - initial climb'), (523, 300, 'Takeoff - aborted'), (530, 400, 'Climb'), (531, 400, 'Climb - to cruise'), (540, 400, 'Cruise'), (541, 400, 'Cruise - normal'), (542, 400, 'Maneuvering - holding (IFR)'), (550, 400, 'Descent'), (551, 400, 'Descent - normal'), (552, 600, 'Descent - emergency'), (553, 650, 'Descent - uncontrolled'), (560, 500, 'Approach'), (561, 500, 'Approach - VFR pattern - downwind'), (562, 500, 'Approach - VFR pattern - base turn'), (563, 500, 'Approach - VFR pattern - base leg/base to final'), (564, 500, 'Approach - VFR pattern - final approach'), (565, 500, 'Go-around (VFR)'), (566, 500, 'Approach - IAF to FAF/outer marker (IFR)'), (567, 500, 'Approach - FAF/outer marker to threshold (IFR)'), (568, 500, 'Circling (IFR)'), (569, 500, 'Missed approach (IFR)'), (570, 550, 'Landing'), (571, 550, 'Landing - flare/touchdown'), (572, 550, 'Landing - roll'), (573, 550, 'Landing - aborted'), (574, 550, 'Emergency landing'), (575, 550, 'Emergency landing after takeoff'), (576, 600, 'Emergency descent/landing'), (580, 450, 'Maneuvering'), (581, 450, 'Maneuvering - aerial application'), (582, 450, 'Maneuvering - turn to reverse direction'), (583, 450, 'Maneuvering - turn to landing area (emergency)'), (590, 450, 'Hover'), (591, 450, 'Hover - in ground effect'), (592, 450, 'Hover - out of ground effect'), (600, 800, 'Other'), (610, 990, 'Unknown')),
  current_codes AS (
    SELECT e.case_mkey, TRY_CAST(e."tier1Number" AS INTEGER) AS code,
      row_number() OVER (PARTITION BY e.case_mkey ORDER BY coalesce(e."isDefiningEvent", false) DESC, e.position) AS n
    FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e
    WHERE e.aircrafts_position = 1 AND e."tier1Number" GLOB '[1-9][0-9]*'
      AND (e."isDefiningEvent" OR e.case_mkey IN (SELECT "mKey" FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' WHERE "isPre1982"))
  ),
  phases AS (
    SELECT case_mkey, 'current' AS scheme, code, CASE WHEN code >= 990 THEN 990 ELSE code // 50 * 50 END AS main
    FROM current_codes WHERE n = 1
    UNION ALL
    SELECT o.case_mkey, 'older', o."phaseOfFlightCode", w.main
    FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o JOIN crosswalk w ON w.code = o."phaseOfFlightCode"
    WHERE o.aircrafts_position = 1 AND o."occurrenceNumber" = 1 AND o.case_mkey NOT IN (SELECT case_mkey FROM current_codes)
  ),
  case_phases AS (
    SELECT p.*, c."eventDate", c."highestInjuryLevel" = 'Fatal' AS fatal, a.aircraft_model_code
    FROM phases p JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c."mKey" = p.case_mkey
    LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = p.case_mkey AND a.position = 1
    WHERE c."eventDate" >= DATE '1962-01-01' AND p.main IN (SELECT main FROM phase_names)
  )
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 c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 400)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-phases/400/cases?page=272

---
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.