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20020929032419I

Incident · Minor damage
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FAA incident report · Saab SF340A · Charleston, WV · September 29, 2002

FAA Aviation Safety Information Portal

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Date
September 29, 2002 · 16:47 local
Place
Charleston, WV
Airport
Yeager
Phase of flight
Ground Taxi, Other Airplane
Operating rules
Air carrier (Part 121)
Operator
MALA
Damage
Minor damage
Aircraft
N106XJ
Reported as
Saab SF340A
People aboard
19
Fatal injuries
0
Pilot’s flight hours
3,275 total2,225 in this make and model36 in the last 90 days
N106XJRegistration cancelled Jan 9, 2018 · Saab-Fairchild 340AS/N 340A-106Airframe modelSaab-Fairchild 340A

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

(-23) Crew received master caution due to hydraulic pressure low. Crew observed pressure approaching redline. Hydraulic level was normal. Qrh procedures were called out by the PIC to the first officer to attempt to regain pressure in the main hydraulic accumulator. The crew then verified circuit breakers were in. The crew determined the hydraulic pump had failed and then realized brake pressure was at or near 0 PSI. The aircraft was on downward sloping taxiway alpha. A severe drop off of 200-300 feet to the right of the aircraft. The pilot feathered the left engine to use assymetric thrust to keep the aircraft to the left. This caused the aircraft to momentarily move to the right. The pilot then added power to the right engine to compensate. Because there was no hydraulic pressure both the nose steering and brakes failed to operate. The aircraft rolled off the taxiway into a taxiway/runway sign. Prior to contact with the sign, the pilot shut down the left engine. The left propeller hit the sign and was substantially damaged. No other damage was noted. The PIC informed ATC. The passengers exited the aircraft and were transported back to the gate. privacy data omitted

As the FAA filed it

(-23) CREW RECEIVED MASTER CAUTION DUE TO HYDRAULIC PRESSURE LOW. CREW OBSERVED PRESSURE APPROACHING REDLINE. HYDRAULIC LEVEL WAS NORMAL. QRH PROCEDURES WERE CALLED OUT BY THE PIC TO THE FIRST OFFICER TO ATTEMPT TO REGAIN PRESSURE IN THE MAIN HYDRAULIC ACCUMULATOR. THE CREW THEN VERIFIED CIRCUIT BREAKERS WERE IN. THE CREW DETERMINED THE HYDRAULIC PUMP HAD FAILED AND THEN REALIZED BRAKE PRESSURE WAS AT OR NEAR 0 PSI. THE AIRCRAFT WAS ON DOWNWARD SLOPING TAXIWAY ALPHA. A SEVERE DROP OFF OF 200-300 FEET TO THE RIGHT OF THE AIRCRAFT. THE PILOT FEATHERED THE LEFT ENGINE TO USE ASSYMETRIC THRUST TO KEEP THE AIRCRAFT TO THE LEFT. THIS CAUSED THE AIRCRAFT TO MOMENTARILY MOVE TO THE RIGHT. THE PILOT THEN ADDED POWER TO THE RIGHT ENGINE TO COMPENSATE. BECAUSE THERE WAS NO HYDRAULIC PRESSURE BOTH THE NOSE STEERING AND BRAKES FAILED TO OPERATE. THE AIRCRAFT ROLLED OFF THE TAXIWAY INTO A TAXIWAY/RUNWAY SIGN. PRIOR TO CONTACT WITH THE SIGN, THE PILOT SHUT DOWN THE LEFT ENGINE. THE LEFT PROPELLER HIT THE SIGN AND WAS SUBSTANTIALLY DAMAGED. NO OTHER DAMAGE WAS NOTED. THE PIC INFORMED ATC. THE PASSENGERS EXITED THE AIRCRAFT AND WERE TRANSPORTED BACK TO THE GATE. ^PRIVACY DATA OMITTED^