Cessna 210M N6979B

Summary

On 2 September 1992 at about 15:30 local time, a Cessna 210M registered N6979B, operated by Montague, Harvey L., was involved in an accident near Smithfield, North Carolina, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

2 September 1992 at 15:30

Classification

Accident

Location

Smithfield, North Carolina, United States

Nearest airport

Johnston County (JNX)

Coordinates

35.4998, -78.3406

Aircraft

Cessna 210M

Registration

N6979B

Category

Airplane

Engines

1

Operator

Montague, Harvey L.

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Fuquay-Varina → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

ATL92LA174

Nobody was injured.

THE PILOT'S OPERATION OF THE AIRPLANE WITH KNOWN ELECTRICAL DEFICIENCIES WHICH RESULTED IN A FAILURE OF THE LANDING GEAR HYDRAULIC POWERPACK. THE PILOT ALSO FAILED TO FOLLOW EMERGENCY PROCEDURES FOR LOWERING THE LANDING GEAR. FACTORS WERE AN INOPERATIVE ALTERNATOR AND A WEAK BATTERY.

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

Read the full NTSB narrative

THE PILOT ARRIVED AT THE AIRPORT AND DISCOVERED THAT THE AIRPLANE'S BATTERY WAS WEAK. HE REQUESTED AN ELECTRICAL BOOST FROM A LOCAL MECHANIC TO START THE ENGINE. AFTER STARTING THE ENGINE, THE PILOT ALLOWED THE ENGINE TO RUN FOR SEVERAL MINUTES BEFORE TAXIING TO THE RUNWAY FOR TAKEOFF. THE PILOT REPORTED THAT THE RUNUP PROCEDURE WAS NORMAL. HE ALSO TURNED OFF ALL ELECTRICAL EQUIPMENT, BUT LEFT ONE COMMUNICATION RADIO ON. AFTER LIFTOFF, THE PILOT DISCOVERED THAT THE LANDING GEAR WOULD NOT RETRACT COMPLETELY. THE PILOT ELECTED TO CONTINUE THE FLIGHT AND, WHILE EN ROUTE, HE ATTEMPTED MANUALLY TO LOWER THE MAIN LANDING GEAR, BUT FELT PRESSURE ON THE EMERGENCY EXTENSION HANDLE AND DECIDED TO DISCONTINUE THE EXTENSION OPERATION. DURING THE LANDING ROLL, AT THE DESTINATION AIRPORT, THE RIGHT MAIN LANDING GEAR COLLAPSED AND THE AIRPLANE VEERED OFF THE RIGHT SIDE OF THE RUNWAY. AS THE RIGHT WING WAS LIFTED UP, DURING THE WRECKAGE RECOVERY PHASE, THE PILOT LOWERED THE RIGHT MAIN GEAR WITH THE EMERGENCY EXTENSION HANDLE. EXAMINATION OF THE ELECTRICAL SYSTEM DISCLOSED THAT A DIODE IN THE ALTERNATOR HAD SLIPPED FROM ITS NORMALLY INSTALLED POSITION.

Quoted verbatim from the NTSB record.