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19990722032619I

Incident
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FAA incident report · Fokker F.28 MK 0100 · Middletown, PA · July 22, 1999

FAA Aviation Safety Information Portal

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Date
July 22, 1999 · 15:59 local
Place
Middletown, PA
Airport
Harrisburg International Airport-Olmsted
Phase of flight
Normal Cruise
Operating rules
Air carrier (Part 121)
Operator
AALA
Aircraft
N1427A
Reported as
Fokker F28MK0100
People aboard
2
Fatal injuries
0
Pilot’s flight hours
11,000 total4,000 in this make and model210 in the last 90 days
N1427ARegistration cancelled May 4, 2006 · Fokker F.28 MK 0100S/N 11412 · Built 1992Airframe modelFokker F.28 MK 0100Engine modelRolls-Royce TAY-650-15Turbo-fan

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) The #1 hydraulic system low quantity light came on in cruise at FL29. A non-eventful landing was made at the destination airport, Middletown (MDT). Maintenance personnel at MDT determined the low hydraulic quantity was caused by a leaking o-ring in the #1 pressure manifold. The air carrier's maintenance personnel replaced a pinched o-ring in the pressure manifold, re-serviced the #1 hydraulic system, and approved the aircraft for return to service. A mechanical reliability report was submitted by the carrier on July 22, 1999.

As the FAA filed it

(-23) THE #1 HYDRAULIC SYSTEM LOW QUANTITY LIGHT CAME ON IN CRUISE AT FL29. A NON-EVENTFUL LANDING WAS MADE AT THE DESTINATION AIRPORT, MIDDLETOWN (MDT). MAINTENANCE PERSONNEL AT MDT DETERMINED THE LOW HYDRAULIC QUANTITY WAS CAUSED BY A LEAKING O-RING IN THE #1 PRESSURE MANIFOLD. THE AIR CARRIER'S MAINTENANCE PERSONNEL REPLACED A PINCHED O-RING IN THE PRESSURE MANIFOLD, RE-SERVICED THE #1 HYDRAULIC SYSTEM, AND APPROVED THE AIRCRAFT FOR RETURN TO SERVICE. A MECHANICAL RELIABILITY REPORT WAS SUBMITTED BY THE CARRIER ON JULY 22, 1999.