Oklahoma City - Lawton

Atr pilot departing airport under VMC experienced failure of the right engine shortly after lift-off. The aircraft yawed right followed by a steep right roll, contacting power lines with the right wing and subsequently impacted the ground. A post-crash fire destroyed the aircraft with the exception of both engines and a portion of the right wing panel. The engine failed due to lack of lubrication to the impeller shaft caused by blockage of oil jet due to fod. Oil line from scavenge sump to scavenge pump inlet had been replaced prior to accident. The aircraft had experienced maintenance problem (oil leak) approximately 2 weeks prior to accident. Source of fod is undetermined. Both occupants were killed.

Flight / Schedule

Oklahoma City - Lawton

Aircraft

Beechcraft H18

Registration

N1461G

MSN

BA-637

Year of Manufacture

1962

Operator

Starflight

Date

November 5, 1985 at 03:11 PM

Type

CRASH

Flight Type

Cargo

Flight Phase

Takeoff (climb)

Crash Site

Airport (less than 10 km from airport)

Crash Location

Oklahoma City Oklahoma

Region

North America • United States of America

Coordinates

35.5023°, -97.5319°

Crash Cause

Human factor

Narrative Report

On November 5, 1985 at 03:11 PM, Oklahoma City - Lawton experienced a crash involving Beechcraft H18, operated by Starflight, with the event recorded near Oklahoma City Oklahoma.

The flight was categorized as cargo and the reported phase was takeoff (climb) at a airport (less than 10 km from airport) crash site.

2 people were known to be on board, 2 fatalities were recorded, 0 survivors were identified or estimated. This corresponds to an estimated fatality rate of 100.0%.

Crew on board: 2, crew fatalities: 2, passengers on board: 0, passenger fatalities: 0, other fatalities: 0.

The listed crash cause is human factor. Atr pilot departing airport under VMC experienced failure of the right engine shortly after lift-off. The aircraft yawed right followed by a steep right roll, contacting power lines with the right wing and subsequently impacted the ground. A post-crash fire destroyed the aircraft with the exception of both engines and a portion of the right wing panel. The engine failed due to lack of lubrication to the impeller shaft caused by blockage of oil jet due to fod. Oil line from scavenge sump to scavenge pump inlet had been replaced prior to accident. The aircraft had experienced maintenance problem (oil leak) approximately 2 weeks prior to accident. Source of fod is undetermined. Both occupants were killed.

Aircraft reference details include registration N1461G, MSN BA-637, year of manufacture 1962.

Geospatial coordinates for this crash are approximately 35.5023°, -97.5319°.

Fatalities

Total

2

Crew

2

Passengers

0

Other

0

Crash Summary

Atr pilot departing airport under VMC experienced failure of the right engine shortly after lift-off. The aircraft yawed right followed by a steep right roll, contacting power lines with the right wing and subsequently impacted the ground. A post-crash fire destroyed the aircraft with the exception of both engines and a portion of the right wing panel. The engine failed due to lack of lubrication to the impeller shaft caused by blockage of oil jet due to fod. Oil line from scavenge sump to scavenge pump inlet had been replaced prior to accident. The aircraft had experienced maintenance problem (oil leak) approximately 2 weeks prior to accident. Source of fod is undetermined. Both occupants were killed.

Cause: Human factor

Occupants & Outcome

Crew On Board

2

Passengers On Board

0

Estimated Survivors

0

Fatality Rate

100.0%

Known people on board: 2

Operational Details

Schedule / Flight

Oklahoma City - Lawton

Operator

Starflight

Flight Type

Cargo

Flight Phase

Takeoff (climb)

Crash Site

Airport (less than 10 km from airport)

Region / Country

North America • United States of America

Aircraft Details

Aircraft

Beechcraft H18

Registration

N1461G

MSN

BA-637

Year of Manufacture

1962