Cessna T210L N4691Q

Summary

On 12 January 1985 at about 06:27 local time, a Cessna T210L registered N4691Q was involved in an accident near San Jose, California, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. No probable cause statement is available for this record.

Date

12 January 1985 at 06:27

Classification

Accident

Location

San Jose, California, United States

Nearest airport

San Jose Muni (SJC)

Coordinates

37.3400, -121.9000

Aircraft

Cessna T210L

Registration

N4691Q

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Business

Phase of flight

Not recorded

Route

Phoenix → San Jose

Aircraft damage

Substantial

Weather

VMC

Light

Night/Dark

NTSB number

LAX85LA108

Nobody was injured.

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB narrative

DURING FIRST LEG OF THE FLIGHT, PLT DISCOVERED THAT LANDING GEAR WOULD NOT EXTEND. PRESSURIZING 'DOWN SIDE' WITH EMERGENCY HAND PUMP ALLOWED NORMAL OPERATION OF THE LANDING GEAR. ON RETURN FLT TO SAN JOSE, PLT TRIED TO EXTEND THE GEAR BUT SYSTEM WOULD NOT WORK WITH EITHER THE NORMAL OR EMERGENCY SYSTEM. ACFT LANDED GEAR UP AND INCURRED SUBSTANTIAL DAMAGE. SUBSEQUENT EXAMINATION OF THE HYDRAULIC SYSTEM DISCLOSED A ONE-HALF INCH PIECE OF PACKING IN THE NOSE GEAR MANIFOLD NEAR THE DOOR CLOSE VALVE, AND A THERMAL RELIEF VALVE STUCK IN THE OPEN POSITION BY A BUILD-UP OF 'DARK COLORED GREASY RESIDUE' ON THE SPRING.

Quoted verbatim from the NTSB record.