# Incident 20081029851369I: Boeing 737823, Pittsburgh, PA, October 29, 2008

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: October 29, 2008
- Place: Pittsburgh, PA
- Airport: Pittsburgh International
- Damage: No damage
- Phase of flight: Cruise/Level Flight
- Operating rules: Air carrier (Part 121)
- Operator: AALA
- Location: 40.4914° N, 80.2327° W: Placed by OpenAirDocs at PITTSBURGH INTL (PIT), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.4914&lon=-80.2327&mi=10
- Aircraft: N905AN, registered now (https://openairdocs.org/aircraft/N905AN) (OpenAirDocs)
- Registry model: Boeing 737-823 (registry code 13844CB, https://openairdocs.org/model/boeing-737-823) (OpenAirDocs)
- Registry engine: CFM International CFM56 series (registry code 13802, https://openairdocs.org/engine/cfm-international-cfm56-series) (OpenAirDocs)
- Reported make and model: BOEING 737823
- People aboard: 94
- Fatal injuries: 0
- Pilot flight hours: 0 total, 0 in this make and model, 0 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20081029851369I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) ON OCTOBER 29, 2008, AT APPROXIMATELY 2326 EASTERN TIME, A BOEING 737-823, N905AN, FLIGHT NUMBER 144 CONDUCTED UNDER 14 CFR PART 121 BY AMERICAN AIRLINES, INC. DIVERTED TO PITTSBURGH INTERNATIONAL AIRPORT (KPIT), PITTSBURGH, PENNSYLVANIA AFTER REPORTING A HYDRAULIC PROBLEM.  THE AIRCRAFT LANDED ON RUNWAY 28R WITHOUT INCIDENT.  THE AIRCRAFT RESCUE FIRE FIGHTING (ARFF) UNITS RESPONDED BUT WERE NOT UTILIZED.  THE AIRCRAFT TAXIED TO THE RAMP WITHOUT FURTHER INCIDENT.  AMERICAN AIRLINES PROVIDED A REPORT FROM THE CAPTAIN WHO STATED THE FOLLOWING, "AT FL 390, APPROX 4 HRS, 15 MIN INTO FLIGHT LAX-IAD, LEFT ENG HYD PUMP LOW PRESSURE LIGHT CAME ON.  SHUT DOWN LEFT PUMP IAW QRH.  APPROX 5 MIN LATER, RIGHT ENG PUMP LOW PRESSURE LIGHT ALSO CAME ON.  SHUTDOWN RIGHT PUMP IAW QRH.  DECLARED EMERGENCY WITH ATC AND DIVERTED TO KPIT.  ELECTRIC HYD PUMPS REMAINED ON AND HYD PRESSURE REMAINED NORMAL EXCEPT FOR MOMENTARY AMBER DURING FLAP EXTENSION.  OTHERWISE, GEAR AND FLAP OPERATION OK.  APPROACH, LANDING, AND TAXI WERE UNEVENTFUL.  HYD PRESSURE REMAINED OK THROUGHOUT."  ACCORDING TO AMERICAN AIRLINES MAINTENANCE RECORDS, THE DISREPANCY WAS LISTED AS, "APPROX 4 HOURS 15 MINUTES IN FLIGHT ENG 1 HYD LOW PRESS LITE 1 CAME ON.  APPROX 5 MINS LATER, ENG 2 HYD LOW PRESS 1 LITE ALSO CAME ON.  FL 390 BOTH PUMPS TURNED OFF IAW 7QRH."  THIS DISCREPANCY WAS CLEARED WITH THE FOLLOWING ENTRY IN THE AIRCRAFT RECORDS BY AMERICAN AIRLINES MECHANICS FROM CHICAGO WORKING AT KPIT, "REMOVED AND REPL. HYD RESERVOIR PRESS. MODULE PER MM 7 29-1 1-01-5.  OPS CHECK OK PER MM 29-1 1-01-5.  ENGINE HYD PUMPS OPS CHECK OK PER MM 29-1 1-1 1-41."  THERE WERE NO INJURIES TO THE CREW.  THE FLIGHT CREW'S ACTIONS OR LACK OF ACTIONS DID NOT CONTRIBUTE TO THIS INCIDENT.

## Other reports on N905AN (1)

Matched to the same aircraft by N-number and date.

- [Incident 19991214037599I](https://openairdocs.org/incident/19991214037599I), Dec 14, 1999: Boeing 737832 (N905AN), Minneapolis, MN. (-23) Enroute from seattle to boston #1 engine compressor stalled at FL 370. N1 rolled back but recovered. Flight attendant saw puffs of flames out the tail…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft 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. For accidents, the NTSB's own investigation is the fuller record.

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