19971204043629I

Incident

FAA incident report · Boeing 727200 · Indianapolis, IN · December 4, 1997

Date: December 4, 1997 · 09:21 local
Place: Indianapolis, IN
Airport: Indianapolis International
Phase of flight: Normal Cruise
Operating rules: Air carrier (Part 121)
Operator: AMTA
Aircraft: N767AT
Reported as: Boeing 727200
People aboard: 3
Fatal injuries: 0

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.

Narrative: on December 4, 1997, at 0921 EDT, a Boeing B727-227, N767AT, registered to first security bank of Utah, and operated by American trans air, inc., departed midway airport, chicago, Illinois (mdw) to southwest Florida international airport, fort myers, Florida (rsw). During cruise, (at 28,000 feet) the hydraulic quantity on system "a" dropped to slightly below 1 gallon. The pilot diverted the aircraft to Indianapolis Indiana (ind) and landed without further incident. Visual meteorological conditions prevailed at the time and an IFR flight plan was filed. Maintenance personnel found the number 2 engine driven hydraulic case drain filter back up ring not seated properly, causing the hydraulic loss. The o-rings and back up rings were replaced per instructions in the maintenance manual and no leaks were noted during the test. This incident is considered closed.

As the FAA filed it

NARRATIVE: ON DECEMBER 4, 1997, AT 0921 EDT, A BOEING B727-227, N767AT, REGISTERED TO FIRST SECURITY BANK OF UTAH, AND OPERATED BY AMERICAN TRANS AIR, INC., DEPARTED MIDWAY AIRPORT, CHICAGO, ILLINOIS (MDW) TO SOUTHWEST FLORIDA INTERNATIONAL AIRPORT, FORT MYERS, FLORIDA (RSW). DURING CRUISE, (AT 28,000 FEET) THE HYDRAULIC QUANTITY ON SYSTEM "A" DROPPED TO SLIGHTLY BELOW 1 GALLON. THE PILOT DIVERTED THE AIRCRAFT TO INDIANAPOLIS INDIANA (IND) AND LANDED WITHOUT FURTHER INCIDENT. VISUAL METEOROLOGICAL CONDITIONS PREVAILED AT THE TIME AND AN IFR FLIGHT PLAN WAS FILED. MAINTENANCE PERSONNEL FOUND THE NUMBER 2 ENGINE DRIVEN HYDRAULIC CASE DRAIN FILTER BACK UP RING NOT SEATED PROPERLY, CAUSING THE HYDRAULIC LOSS. THE O-RINGS AND BACK UP RINGS WERE REPLACED PER INSTRUCTIONS IN THE MAINTENANCE MANUAL AND NO LEAKS WERE NOTED DURING THE TEST. THIS INCIDENT IS CONSIDERED CLOSED.