Cessna T210L N1664X

Summary

On 19 April 1995 at about 02:30 local time, a Cessna T210L registered N1664X, operated by B & M Enterprises, Inc., was involved in an accident near Estancia, New Mexico, United States. One person was on board and one had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

19 April 1995 at 02:30

Classification

Accident

Location

Estancia, New Mexico, United States

Coordinates

34.7595, -106.0602

Aircraft

Cessna T210L

Registration

N1664X

Category

Airplane

Engines

1

Operator

B & M Enterprises, Inc.

Operating rule

Part 135: Air Taxi & Commuter

Purpose of flight

Unknown

Phase of flight

Not recorded

Route

Alamogordo → Albuquerque

Aircraft damage

Substantial

Weather

VMC

Light

Night/Dark

NTSB number

FTW95LA174

1 person had minor injuries.

THE LOSS OF ENGINE POWER DUE TO EXHAUST VALVE SEPARATION RESULTING FROM INADEQUATE MAINTENANCE. A FACTOR WAS THE DARK NIGHT AND THE LACK OF SUITABLE TERRAIN FOR THE FORCED LANDING.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

DURING THE FORCED LANDING, FOLLOWING A TOTAL LOSS OF ENGINE POWER, IN DARK NIGHT CONDITIONS, THE AIRPLANE STRUCK TRANSMISSION WIRES AND TREES BEFORE COMING TO REST INVERTED ALONG A FENCE ROW. EXAMINATION OF THE ENGINE REVEALED A HOLE IN THE #2 PISTON. PHYSICAL EVIDENCE INDICATED THAT THE EXHAUST VALVE MIGRATED OUT THE EXHAUST. METAL PARTS, FOUND IN THE OIL SUMP, WERE IDENTIFIED AS PARTS OF THE #2 EXHAUST VALVE SEAT. ENGINE S/N 217105R WAS OVERHAULED IN MARCH, 1992; HOWEVER, RECORDS DID NOT INDICATE THAT THE VALVES HAD BEEN CHANGED AT THE OVERHAUL. ACCORDING TO THE MANUFACTURER REPRESENTATIVE, 'GUIDELINES FOR AN ENGINE OVERHAUL REQUIRE CHANGING THE VALVE.' THE ENGINE WAS SUBSEQUENTLY REMOVED AND REASSEMBLED IN AUGUST, 1993, AND IN FEBRUARY, 1994.

Quoted verbatim from the NTSB record.