No fatalities

1978-09-24: Grumman G-159 Gulfstream I (N91G) — Conoco (Continental Oil Corporation) — Houston-William P. Hobby, United States of America

Houston-William P. Hobby, United States of AmericaLanding (descent or approach)

On September 24, 1978, a Grumman G-159 Gulfstream I (registration N91G) operated by Conoco (Continental Oil Corporation) was involved in an aviation accident near Houston-William P. Hobby, United States of America during landing or approach. No fatalities were reported. Investigators recorded the probable cause as: Wheels-up landing following a go-around after the crew failed to follow approved procedures. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 1 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 1781226115Data APIEditorial standards

During approach to Houston Hobby, low oil pressure forced right engine shutdown. After touchdown and partial roll, go-around attempted; left engine lost power, fire observed. Belly landing in field; 20 rescued, one seriously injured. Probable cause: crew failure to follow approved procedures.

Incident Overview

On approach to Houston-William P. Hobby Airport, a low oil pressure indication in the right engine gearbox compelled the flight crew to shut down that engine and feather its propeller. For reasons not determined during the investigation, the propeller did not fully feather. The aircraft approached the runway with a higher-than-normal speed and lower-than-normal altitude.

Sequence of Events

After touchdown, and after the airplane had rolled approximately half of the available landing distance (7,600 feet), the captain decided to abort the landing and initiate a go-around. Following liftoff, fire was observed emanating from the tail exhaust pipe, and simultaneously the left engine lost power. The crew then executed an emergency landing, performing a belly landing in an open field near the airport. All 20 occupants were evacuated from the aircraft; one passenger sustained serious injuries. The aircraft was destroyed in the accident.

Investigation Findings

The official investigation determined that the wheels-up landing resulted from the crew's decision to attempt a go-around after failing to follow approved procedures. The following contributing factors were identified: improper execution of emergency procedures, a poorly planned approach, failure of both engines, a forced landing off airport on land, the right engine being shut down in flight due to low oil pressure, the right propeller not being fully feathered, and the left engine being unable to fully accelerate.

Probable cause

Wheels-up landing following a go-around after the crew failed to follow approved procedures.