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NTSB Report
January 28, 1984 · Cessna 401A · N7KF
San Francisco, CA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
January 28, 1984
Injury Outcomes
No injuries (3 uninjured)
Location
San Francisco, CA
Aircraft
Cessna 401A
Tail Number
N7KF
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX84LA161
THE ACFT WAS LANDED GEAR UP AFTER ATTEMPTS TO LOWER THE GEAR WERE UNSUCCESSFUL. THE SYSTEM MALFUNCTIONED BECAUSE THE NOSE GEAR JAMMED THE MAIN GEAR DURING RETRACTION. THE JAMMING OCCURRED BECAUSE THE NOSE STRUT DID NOT EXTEND DUE TO LACKOF AIR PRESSURE. THE AIR CHARGE ADDED AFTER THE ACCIDENT WAS HOLDING 3 WEEKS LATER.
Full Narrative
THE ACFT WAS LANDED GEAR UP AFTER ATTEMPTS TO LOWER THE GEAR WERE UNSUCCESSFUL. THE SYSTEM MALFUNCTIONED BECAUSE THE NOSE GEAR JAMMED THE MAIN GEAR DURING RETRACTION. THE JAMMING OCCURRED BECAUSE THE NOSE STRUT DID NOT EXTEND DUE TO LACKOF AIR PRESSURE. THE AIR CHARGE ADDED AFTER THE ACCIDENT WAS HOLDING 3 WEEKS LATER.
Flight
Event TypeAccident
Event Time13:38 PST
Nearest AirportSanfrancisco Intn'L (0nm N)
Runway0
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 401A
Tail NumberN7KF
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsContinental · ISIO 520-E8 · Reciprocating · 300
People & Injuries
Injury SummaryNo injuries (3 uninjured)
Fatal0
Serious0
Minor0
Uninjured3
Total3
Crew 1Age 61 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind150° @ 3 kt
Visibility9 sm
CeilingNone
Temperature / Dew Point66 F / 39 C
Altimeter30.00 inHg
Observation Time21:44
Weather SourceWFAC