# NTSB investigations, 1998: Loss of engine power(partial) - nonmechanical

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 LAX99FA052](https://openairdocs.org/ntsb/LAX99FA052.md): Parkman VARI-EZE · Tucson, AZ · Accident · 1 fatal · Field investigation · Final report · Dec 18, 1998 · N81EZ · Destroyed
  > The pilot's failure to attain and maintain an adequate flying airspeed during the aircraft's maiden flight, which resulted in a stall/mush condition. Also causal was the pilot/builder's decision to modify the engine and the fuel system control microchip,…
- [NTSB ATL99LA031](https://openairdocs.org/ntsb/ATL99LA031.md): Piper PA-28-140 · Aiken, SC · Accident · No injuries · Limited investigation · Final report · Nov 25, 1998 · N3350T · Substantial damage
  > The pilot's failure to use carburetor heat properly. Contributing to the accident were the carburetor icing conditions.
- [NTSB SEA99FA015](https://openairdocs.org/ntsb/SEA99FA015.md): Piper PA-23-150 · Ferndale, WA · Accident · Serious injuries · Field investigation · Final report · Nov 16, 1998 · CFJXG · Substantial damage
  > The pilot's improper decision to attempt to reach his final destination after a partial loss of engine power, instead of making a precautionary landing at one of the airports he overflew along his route. Factors include an inadequate preflight, a fuel filter…
- [NTSB SEA99LA011](https://openairdocs.org/ntsb/SEA99LA011.md): Cessna 152 · Auburn, WA · Accident · Minor injuries · Limited investigation · Final report · Nov 7, 1998 · N6312P · Substantial damage
  > A partial loss of engine power due to carburetor ice formation. Factors included insufficient altitude/time available for remedial action, a tail wind during the forced landing attempt, and a fence at the end of the runway.
- [NTSB ATL99LA012](https://openairdocs.org/ntsb/ATL99LA012.md): AeroSport WS-15-2 · Parkton, NC · Accident · No injuries · Limited investigation · Final report · Nov 7, 1998 · N88760 · Substantial damage
  > The collapse of the carburetor heat box hose which starved the carburetor of air resulting in a partial loss of power, forced landing and nose over. Factors were the weeds and stocky stubble in the forced landing zone.
- [NTSB MIA99LA016](https://openairdocs.org/ntsb/MIA99LA016.md): Piper PA-34 · Ormond Beach, FL · Accident · No injuries · Limited investigation · Final report · Oct 27, 1998 · N45SA · Substantial damage
  > The pilot's failure to maintain Vmc speed, which resulted in a loss of control, and his improper operation of the throttle given the known full rich operating condition of the left engine. A sand-contaminated fuel control was a contributing factor.
- [NTSB ANC99LA002](https://openairdocs.org/ntsb/ANC99LA002.md): Cessna 207A · Napaskiak, AK · Accident · Minor injuries · Limited investigation · Final report · Oct 8, 1998 · N6874M · Substantial damage
  > The pilot's inadequate preflight inspection to remove all contaminated fuel from the fuel system. Factors in the accident were the pilot's inadequate planning/decision to continue a second takeoff following an engine surge and aborted takeoff, and unsuitable…
- [NTSB MIA99LA003](https://openairdocs.org/ntsb/MIA99LA003.md): Piper PA-28R-200 · Punta Gorda, FL · Accident · Minor injuries · Limited investigation · Final report · Oct 3, 1998 · N53EN · Substantial damage
  > The failure of maintenance personnel to refill the engine oil following the draining of the oil and changing of the oil filter. Also, inadequate preflight of the airplane by the pilot for his failure to noted the absence of engine oil.
- [NTSB LAX99FA001](https://openairdocs.org/ntsb/LAX99FA001.md): Aero Commander 680 FPL · Palm Springs, CA · Accident · 1 fatal · Field investigation · Final report · Oct 1, 1998 · N5YZ · Destroyed
  > The pilot's failure to properly use the manual turbocharger wastegates and to monitor the manifold pressure during takeoff.
- [NTSB CHI98LA365](https://openairdocs.org/ntsb/CHI98LA365.md): Cessna 182 · Wheatfield, IN · Accident · Minor injuries · Limited investigation · Final report · Sep 30, 1998 · N6474A · Substantial damage
  > the pilot's failure to apply carburetor heat when the engine lost power. Factors associated with the accident were the carburetor icing conditions which prevailed, the low altitude at which the loss of power occurred, and the soybean crop in which the…
- [NTSB MIA98LA249](https://openairdocs.org/ntsb/MIA98LA249.md): Cessna 152 · Burlington, NC · Accident · Minor injuries · Limited investigation · Final report · Sep 20, 1998 · N48195 · Destroyed
  > The pilot's failure to abort the takeoff after recognizing that the airplane was slow to accelerate during the takeoff roll, and his not obtaining/maintaining clearance with the wire during the forced landing. Contributing factors were carburetor icing…
- [NTSB SEA98LA177](https://openairdocs.org/ntsb/SEA98LA177.md): Stinson 108-1 · Spray, OR · Accident · No injuries · Limited investigation · Final report · Sep 14, 1998 · N8666K · Substantial damage
  > A partial loss of engine power, and the pilot's subsequent misjudgment of clearance with a transmission wire during a precautionary landing approach. The reason for the power loss was not determined; however, the pilot reported that it was not of a mechanical…
- [NTSB LAX98LA283](https://openairdocs.org/ntsb/LAX98LA283.md): Piper PA-28-140 · Truckee, CA · Accident · Minor injuries · Limited investigation · Final report · Sep 7, 1998 · N8772N · Substantial damage
  > The pilot's failure to use carburetor heat in temperature conditions conducive to carburetor icing and his failure to lean the engine in a high density altitude environment, which combined, led to a partial loss of engine power and the onset of a stall during…
- [NTSB MIA98LA240](https://openairdocs.org/ntsb/MIA98LA240.md): Grumman AA-5B · Winnsboro, SC · Accident · No injuries · Limited investigation · Final report · Sep 5, 1998 · N28395 · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB FTW98LA320](https://openairdocs.org/ntsb/FTW98LA320.md): Navion G · Telluride, CO · Accident · Minor injuries · Limited investigation · Final report · Jul 19, 1998 · N2498T · Substantial damage
  > Pilot operating the aircraft with an overly lean mixture. A factor was unsuitable terrain for a forced landing.
- [NTSB IAD98LA077](https://openairdocs.org/ntsb/IAD98LA077.md): Bennett Piel Emeraude · Hillsville, VA · Accident · Minor injuries · Limited investigation · Final report · Jul 13, 1998 · N86WB · Substantial damage
  > A blocked fuel strainer due to an inadequate maintenance inspection by the previous owner, which resulted in fuel starvation.
- [NTSB ANC98LA094](https://openairdocs.org/ntsb/ANC98LA094.md): Meeuwsen Wagabond · Wasilla, AK · Accident · Minor injuries · Limited investigation · Final report · Jul 11, 1998 · N36GM · Substantial damage
  > Loss of engine power for undetermined reasons.
- [NTSB CHI98LA241](https://openairdocs.org/ntsb/CHI98LA241.md): Rockwell S-2R · Fort Ransom, ND · Accident · No injuries · Limited investigation · Final report · Jul 7, 1998 · N4232X · Substantial damage
  > A loss of engine power due to fuel exhaustion. Factors contributing to this accident were the pilot's failure to ensure the airplane had enough fuel to complete the flight, and the fence.
- [NTSB CHI98LA235](https://openairdocs.org/ntsb/CHI98LA235.md): Piper PA-22-108 · Spearfish, SD · Accident · 1 fatal · Limited investigation · Final report · Jul 1, 1998 · N5181Z · Substantial damage
  > the pilots improper preflight planning, which failed to detect the fuel selector positioned on the left fuel tank, which had insufficient fuel, resulting in fuel starvation, and the loss of engine power.
- [NTSB NYC98LA132](https://openairdocs.org/ntsb/NYC98LA132.md): Extra Flugzeugbau Flugzeugbau EA260 · Georgia, VT · Accident · Minor injuries · Limited investigation · Final report · Jun 24, 1998 · N148GC · Destroyed
  > The pilot's inadequate inflight decision and the loss of engine power due to a blocked vent line. A contributing factor was an unreliable fuel gauge.
- [NTSB LAX98LA196](https://openairdocs.org/ntsb/LAX98LA196.md): Beech 76 · San Martin, CA · Accident · Minor injuries · Limited investigation · Final report · Jun 14, 1998 · N912KA · Substantial damage
  > Failure of the instructor to adequately supervise the flight, which included ensuring that the student maintained the proper airspeed during the attempted go-around.
- [NTSB LAX98LA193](https://openairdocs.org/ntsb/LAX98LA193.md): Saab-Scania 91B · Redding, CA · Accident · No injuries · Limited investigation · Final report · Jun 8, 1998 · N6370L · Substantial damage
  > The failure of the pilot to maintain control of the aircraft during an aborted takeoff, which resulted in a ground loop. A factor is the pilot's improper use of carburetor heat during takeoff.
- [NTSB LAX98LA186](https://openairdocs.org/ntsb/LAX98LA186.md): Piper PA-28-181 · El Cajon, CA · Accident · No injuries · Limited investigation · Final report · Jun 7, 1998 · N84451 · Substantial damage
  > The certified flight instructor's inadequate preflight which led to fuel exhaustion and subsequent loss of engine power. A related factor was the unsuitable terrain.
- [NTSB CHI98LA205](https://openairdocs.org/ntsb/CHI98LA205.md): Piper PA-28-140 · Harrison, NE · Accident · No injuries · Limited investigation · Final report · Jun 6, 1998 · N4541R · Substantial damage
  > the pilot's improper positioning of the magneto switch and his improper use of the mixture control.
- [NTSB MIA98FA176](https://openairdocs.org/ntsb/MIA98FA176.md): Mooney M-20E · Winston-Salem, NC · Accident · 2 fatal · Field investigation · Final report · Jun 3, 1998 · N9365V · Destroyed
  > The pilot's improper decision to conduct a maintenance test flight with a known unairworthy mechanical condition (unserviceable servo fuel injector), resulting in a partial loss of engine power on climb out, subsequent forced landing, and in-flight collision…
- [NTSB SEA98LA079](https://openairdocs.org/ntsb/SEA98LA079.md): Air Tractor AT-301 · Idaho Falls, ID · Accident · No injuries · Limited investigation · Final report · May 19, 1998 · N4326S · Substantial damage
  > The pilot's inadequate inflight decision to land with a tailwind and his failure to maintain aircraft control. Also contributing was the pilot's improper setting of the fuel mixture which resulted in a partial loss of engine power.
- [NTSB MIA98LA166](https://openairdocs.org/ntsb/MIA98LA166.md): Grumman American AA-5A · Sumter, SC · Accident · Minor injuries · Limited investigation · Final report · May 18, 1998 · N9884U · Substantial damage
  > The partial failure of the oil cooler bypass valve which resulted in the over-temperature and loss of oil pressure.
- [NTSB LAX98LA151](https://openairdocs.org/ntsb/LAX98LA151.md): Luscombe 8E · Auburn, CA · Accident · No injuries · Limited investigation · Final report · May 2, 1998 · N2435K · Substantial damage
  > The pilot's improper use of carburetor heat and the rough/uneven (furrowed) terrain. A contributing factor was carburetor icing conditions.
- [NTSB MIA98LA144](https://openairdocs.org/ntsb/MIA98LA144.md): Piper PA-18 · St. Petersburg, FL · Accident · No injuries · Limited investigation · Final report · Apr 26, 1998 · N225NY · Substantial damage
  > The intentional operation of the airplane by the pilot and the company/operator with the known deficiencies in equipment (worn carburetor). Also, the poor preflight planning by the pilot for his failure to recognize that the carburetor heat control was…
- [NTSB MIA98LA140](https://openairdocs.org/ntsb/MIA98LA140.md): Piper PA-46-310P · Beaufort, SC · Accident · No injuries · Limited investigation · Final report · Apr 20, 1998 · N77DE · Substantial damage
  > The partial loss of engine power for undetermined reasons.
- [NTSB FTW98LA162](https://openairdocs.org/ntsb/FTW98LA162.md): Carter LONG-EZ · Lebanon, OK · Accident · Minor injuries · Limited investigation · Final report · Mar 28, 1998 · N83LE · Substantial damage
  > The pilot's inadequate compensation for the tailwind and his ensuing failure to attain the proper touchdown point. Factors were the tailwind and the pilot's failure to adequately preflight the airplane which resulted in a partial loss of engine power due to…
- [NTSB FTW98LA146](https://openairdocs.org/ntsb/FTW98LA146.md): Cessna 182A · Jacksonville, TX · Accident · No injuries · Limited investigation · Final report · Mar 14, 1998 · N2130G · Substantial damage
  > The partial loss of engine power for undetermined reasons. Factors were the poor braking conditions due to the grassy wet runway.
- [NTSB FTW98LA129](https://openairdocs.org/ntsb/FTW98LA129.md): Enstrom F-28C-2 · Broomfield, CO · Accident · No injuries · Limited investigation · Final report · Feb 15, 1998 · N5693M · Substantial damage
  > water contamination in the fuel, which resulted in loss of engine power and a forced (autorotative) landing. Factors relating to the accident were: darkness; and a high obstruction in the emergency landing area.
- [NTSB MIA98FA060](https://openairdocs.org/ntsb/MIA98FA060.md): Fairchild 24G · Andalusia, AL · Accident · 1 fatal · Field investigation · Final report · Jan 28, 1998 · N16866 · Destroyed
  > A loss of engine power while in cruise flight caused by a contaminated fuel supply and the subsequent inflight collision with trees and unsuitable terrain during the emergency descent and landing.
- [NTSB ATL98LA032](https://openairdocs.org/ntsb/ATL98LA032.md): Via Aero Comp AC6 · Rockledge, FL · Accident · 2 fatal · Limited investigation · Final report · Jan 17, 1998 · N656AC · Destroyed
  > The loss of engine power for undetermined reasons. A factor was the trees in the emergency landing area.

## 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") = 1998
  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" = 354)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=354&year=1998

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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.