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NTSB Report
May 12, 1984 · British Aerospace BAE-146 · N146AP
Unalaska, AK
Overview
Report Status
Preliminary report
Event Type
Incident
Date
May 12, 1984
Injury Outcomes
No injuries (7 uninjured)
Location
Unalaska, AK
Aircraft
British Aerospace BAE-146
Tail Number
N146AP
Operator
Air Pac
Injuries
None
Aircraft Damage
Minor
NTSB Number
ANC84IA066
A 'NO BRAKE CONDITION' WAS EXPERIENCED WHILE THE PLT WAS USING THE YELLOW BRAKE SYS DURING A LANDING. THE NORMAL LANDING PROCEDURE CALLS FOR USING THE GREEN SYS. DURING THE ROLL-OUT, THE PLT SELECTED THE EMERGENCY YELLOW SYS & SUBSEQUENTLY LOCKED THE BRAKES. HE STATED THAT THE YELLOW HYDRAULIC SYS WAS USED BECAUSE OF A PROBLEM WITH THE GREEN SYS ON THE PREVIOUS DAY. ALSO, HE REPORTED THAT MANAGEMENT HAD DECIDED TO USE THE YELLOW SYS. THE SPECIFIC LEVEL OF MANAGEMENT THAT HAD REPORTEDLY MADE THIS DECISION WAS NOT IDENTIFIED.
Full Narrative
A 'NO BRAKE CONDITION' WAS EXPERIENCED WHILE THE PLT WAS USING THE YELLOW BRAKE SYS DURING A LANDING. THE NORMAL LANDING PROCEDURE CALLS FOR USING THE GREEN SYS. DURING THE ROLL-OUT, THE PLT SELECTED THE EMERGENCY YELLOW SYS & SUBSEQUENTLY LOCKED THE BRAKES. HE STATED THAT THE YELLOW HYDRAULIC SYS WAS USED BECAUSE OF A PROBLEM WITH THE GREEN SYS ON THE PREVIOUS DAY. ALSO, HE REPORTED THAT MANAGEMENT HAD DECIDED TO USE THE YELLOW SYS. THE SPECIFIC LEVEL OF MANAGEMENT THAT HAD REPORTEDLY MADE THIS DECISION WAS NOT IDENTIFIED.
Flight
Event TypeIncident
Event Time17:45 AKDT
Nearest AirportUNALASKA (0nm N)
Runway30
Runway Length3900 ft
Runway Width100 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBritish Aerospace BAE-146
Tail NumberN146AP
Aircraft CategoryAir
DamageMinor
OperatorAir Pac
Operating RulePart 121
Engines4
Engine TypeTurbofan
Engine DetailsLycoming · ALF 502 R-5 · Turbofan · 6970
Seats93
People & Injuries
Injury SummaryNo injuries (7 uninjured)
Fatal0
Serious0
Minor0
Uninjured7
Total7
Crew 1Age 57 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind300° @ 5 kt
Visibility7 sm
CeilingOvercast 1000 ft
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO