# NTSB investigations, 2001: Loss of engine power(partial) - mech failure/malf

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 MIA02LA021](https://openairdocs.org/ntsb/MIA02LA021.md): Ercoupe 415-C · Southern Pines, NC · Accident · No injuries · Limited investigation · Final report · Nov 18, 2001 · N99236 · Substantial damage
  > The dislodging of the front crankshaft oil seal for undetermined reasons resulting in loss of engine oil, loss of engine power, and collision with a tree and then the ground during a forced landing.
- [NTSB DEN02LA010](https://openairdocs.org/ntsb/DEN02LA010.md): Agusta A119 · Ogden, UT · Accident · Minor injuries · Limited investigation · Final report · Nov 9, 2001 · N119RX · Destroyed
  > improper rigging of the rotary variable differential transformer by the manufacturer, resulting in incorrect fuel scheduling to the fuel control unit.
- [NTSB FTW02IA027](https://openairdocs.org/ntsb/FTW02IA027.md): Airbus Industrie A319-132 · Midland, TX · Incident · No injuries · Incident investigation · Final report · Nov 2, 2001 · N814AW · No damage
  > the #1 engine's fatigue failure of the #3 bearing due to the manufacturer's inadequate design of the high-pressure compressor stubshaft coating, which resulted in a loss of engine power and an emergency landing.
- [NTSB NYC02LA018](https://openairdocs.org/ntsb/NYC02LA018.md): American AA-1 · Batavia, OH · Accident · No injuries · Limited investigation · Final report · Oct 28, 2001 · N5664L · Substantial damage
  > Malfunction of an exhaust valve. A factor was the pilot/owner's failure to comply with the engine manufacturer's service instructions.
- [NTSB FTW02LA021](https://openairdocs.org/ntsb/FTW02LA021.md): Cessna 152 · Bethany, OK · Accident · No injuries · Limited investigation · Final report · Oct 26, 2001 · N67797 · Substantial damage
  > the mechanic's failure to properly lock the exhaust valve's clearance adjusting screw locknut, which resulted in a loose nut, disabling of the exhaust valve pushrod, and a partial loss of engine power while in cruise flight. A contributing factor was the…
- [NTSB LAX02LA006](https://openairdocs.org/ntsb/LAX02LA006.md): Stinson 108-3 · Rosamond, CA · Accident · Minor injuries · Limited investigation · Final report · Oct 14, 2001 · N735C · Substantial damage
  > The pilot's failure to attain sufficient airspeed during the attempted takeoff, which resulted in a stall/mush. The airplane's failure to accelerate was due to a disintegrated bearing on the camshaft. The pilot's failure to make a timely abort decision was a…
- [NTSB FTW02LA002](https://openairdocs.org/ntsb/FTW02LA002.md): Hamilton Genesis · Grants, NM · Accident · Serious injuries · Limited investigation · Final report · Oct 3, 2001 · N715MP · Substantial damage
  > the loose throttle cable resulting in a partial loss of engine power. Contributing factors were the pilot's failure to perform the required yearly condition inspection prior to flight and the lack of suitable terrain for the forced landing.
- [NTSB ANC01LA138](https://openairdocs.org/ntsb/ANC01LA138.md): de Havilland DHC-3 · Cordova, AK · Accident · Minor injuries · Limited investigation · Final report · Sep 7, 2001 · N254AW · Substantial damage
  > The loss of engine power during cruise due to the fracture of an engine cylinder exhaust valve.
- [NTSB CHI01LA303](https://openairdocs.org/ntsb/CHI01LA303.md): Cessna 172N · Sheldon, IA · Accident · Minor injuries · Limited investigation · Final report · Sep 1, 2001 · N5593E · Substantial damage
  > the in-flight planning/decision and proper touchdown point not attained by the pilot. Contributing factors were the ingested exhaust valve and lack of experience of the pilot.
- [NTSB FTW01LA193](https://openairdocs.org/ntsb/FTW01LA193.md): Grumman G164B · Rayville, LA · Accident · No injuries · Limited investigation · Final report · Aug 28, 2001 · N2LU · Substantial damage
  > the partial failure of the magneto drive coupling while maneuvering, which resulted in a loss of engine power and a forced landing. A contributing factor to the accident was the lack of suitable terrain for the forced landing.
- [NTSB DEN01LA141](https://openairdocs.org/ntsb/DEN01LA141.md): Enstrom 280FX · Ouray, CO · Accident · No injuries · Limited investigation · Final report · Aug 8, 2001 · N724BF · Substantial damage
  > the partial loss of engine power due to the slippage of the wastegate linkage as a result of the plunger on the linkage being undertorqued by an unknown person. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB CHI01LA229](https://openairdocs.org/ntsb/CHI01LA229.md): Grumman-Schweizer G-164A · Dodge Center, MN · Accident · No injuries · Limited investigation · Final report · Jul 22, 2001 · N5398 · Destroyed
  > The pilot not maintaining directional control on the ground during the takeoff roll. Factors relating to this accident were the total failure of the propeller governor and the corn crop.
- [NTSB ANC01TA076](https://openairdocs.org/ntsb/ANC01TA076.md): Bell 212 · Clear, AK · Accident · No injuries · Final report · Jun 27, 2001 · N5017H · Substantial damage
  > The pilot's selection of an unsuitable landing site following a partial loss of power during approach to landing in a multiengine helicopter. Factors associated with the accident are an automatic fuel control unit that had a restricted fuel flow due to an…
- [NTSB IAD01LA067](https://openairdocs.org/ntsb/IAD01LA067.md): de Havilland DH-82 Tiger Moth · Allamuchy, NJ · Accident · No injuries · Limited investigation · Final report · Jun 16, 2001 · N4797 · Substantial damage
  > The loss of engine power over unsuitable terrain due to an exhaust valve stuck in the open position.
- [NTSB CHI01LA173](https://openairdocs.org/ntsb/CHI01LA173.md): Cessna 172S · Cambridge, NE · Accident · No injuries · Limited investigation · Final report · Jun 16, 2001 · N494SP · Substantial damage
  > the pilot's high airspeed and improper emergency procedures during the emergency landing. Factors relating to this accident were the fractured engine exhaust valve push rod, the bent intake valve push rod, and oil exhaustion during cruise flight, the…
- [NTSB MIA01LA159](https://openairdocs.org/ntsb/MIA01LA159.md): Piper PA-28-140 · Dahlonega, GA · Accident · Serious injuries · Limited investigation · Final report · Jun 11, 2001 · N43466 · Substantial damage
  > The failure of the No. 3 exhaust valve due to fatigue cracking for undetermined reasons, which resulted in a partial loss of engine power and an in-flight collision with a building during an attempted forced landing to unsuitable terrain..
- [NTSB IAD01LA068](https://openairdocs.org/ntsb/IAD01LA068.md): Grumman American AA-5A · Danbury, CT · Accident · Minor injuries · Limited investigation · Final report · Jun 9, 2001 · N27221 · Substantial damage
  > the pilot's misjudged altitude and excessive airspeed resulting in a collision with a pole. A factor was the cracked exhaust stack, which resulted in a partial loss of engine power.
- [NTSB LAX01FA199](https://openairdocs.org/ntsb/LAX01FA199.md): Piper PA-28-180 · Big Bear City, CA · Accident · 1 fatal · Field investigation · Final report · Jun 4, 2001 · N5413S · Destroyed
  > the student pilot's selection of a takeoff runway conducive to a tailwind weather condition and his failure to maintain airspeed and his inadvertent stall during takeoff initial climb. Factors in the accident were the partial loss engine power resulting from…
- [NTSB LAX01LA195](https://openairdocs.org/ntsb/LAX01LA195.md): Schweizer G-164B · Butte City, CA · Accident · Serious injuries · Limited investigation · Final report · May 31, 2001 · N6902K · Substantial damage
  > a fatigue failure of a propeller bolt.
- [NTSB NYC01LA115](https://openairdocs.org/ntsb/NYC01LA115.md): Cessna 150J · Osceola Mills, PA · Accident · Minor injuries · Limited investigation · Final report · May 5, 2001 · N51104 · Substantial damage
  > A partial power loss due to a stuck exhaust valve in the # 2 cylinder, which resulted in a forced landing. A factor was the rising terrain.
- [NTSB LAX01LA161](https://openairdocs.org/ntsb/LAX01LA161.md): Taylor Bandit · Marysville, CA · Accident · Serious injuries · Limited investigation · Final report · Apr 28, 2001 · N8057T · Destroyed
  > The pilot performed an inadequate preflight inspection resulting in a loss of engine power at a low altitude because of water contamination.
- [NTSB NYC01LA098](https://openairdocs.org/ntsb/NYC01LA098.md): Fobes CGS Hawk Plus · West Middlesex, PA · Accident · Minor injuries · Limited investigation · Final report · Apr 8, 2001 · UNREG · Destroyed
  > The partial loss of engine power, for undetermined reasons. Factors included the headwinds on base leg, and the unsuitable terrain for a forced landing.
- [NTSB LAX01LA140](https://openairdocs.org/ntsb/LAX01LA140.md): Cessna 210B · Camp Verde, AZ · Accident · No injuries · Limited investigation · Final report · Apr 6, 2001 · N126RA · Substantial damage
  > The throttle linkage disconnection resulting in the engine producing idle power. A factor was the lack of suitable terrain for a forced landing.
- [NTSB LAX01IA118](https://openairdocs.org/ntsb/LAX01IA118.md): McDonnell Douglas MD-88 · Tucson, AZ · Incident · No injuries · Incident investigation · Final report · Mar 15, 2001 · N996DL · Minor damage
  > the failure of 4th stage turbine blades during takeoff roll, which resulted in a dynamic imbalance in the engine.
- [NTSB CHI01LA101](https://openairdocs.org/ntsb/CHI01LA101.md): Cessna P206 · Derby, KS · Accident · No injuries · Limited investigation · Final report · Mar 10, 2001 · N2507X · Substantial damage
  > The misjudged in-flight planning the pilot had for the forced landing. Factors were the induction air ducting separation, the pilot not coordinating his emergency procedure with airfield traffic, and the trees.
- [NTSB ANC01LA039](https://openairdocs.org/ntsb/ANC01LA039.md): Helio H-295 · Clear, AK · Accident · No injuries · Limited investigation · Final report · Mar 3, 2001 · N42DC · Substantial damage
  > The shifting of engine connecting rod bearings, and the fracture of an engine connecting rod.
- [NTSB CHI01LA095](https://openairdocs.org/ntsb/CHI01LA095.md): Piper PA-22-108 · Overton, NE · Accident · No injuries · Limited investigation · Final report · Feb 18, 2001 · N5886Z · Substantial damage
  > The open exhaust valve. Factors relating to the accident were the sticking exhaust valve guide and the snow drift the airplane encountered during the precautionary landing.
- [NTSB FTW01LA047](https://openairdocs.org/ntsb/FTW01LA047.md): Nord 1101 · McKinney, TX · Accident · Serious injuries · Limited investigation · Final report · Jan 9, 2001 · N208BF · Substantial damage
  > the loss of engine power during takeoff resulting from the inadequate engagement of the throttle torque tube rod end into the support bushing by unknown maintenance personnel.

## 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") = 2001
  AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 352)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=352&year=2001

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