# Incident 20090626012239I: Boeing 757222, Pittsburgh, PA, June 26, 2009

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: June 26, 2009, 08:23 local time
- Place: Pittsburgh, PA
- Airport: Pittsburgh International
- Damage: No damage
- Phase of flight: Cruise/Level Flight
- Operating rules: Air carrier (Part 121)
- Operator: UALA
- 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: N529UA, a cancelled registration (https://openairdocs.org/deregistered/N529UA-2016-11-15) (OpenAirDocs)
- Registry model: Boeing 757-222 (registry code 1384956, https://openairdocs.org/model/boeing-757-222) (OpenAirDocs)
- Registry engine: Pratt & Whitney PW2040 (registry code 52121, https://openairdocs.org/engine/pratt-whitney-pw2040) (OpenAirDocs)
- Reported make and model: BOEING 757222
- Reported engine: PWA PW2040
- People aboard: 120
- Fatal injuries: 0
- Other 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/20090626012239I

## Narrative

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

(-23)  ON JUNE 26, 2009, AT APPROXIMATELY 0823 EASTERN TIME, A BOEING, 757-222, CONDUCTED UNDER 14 CFR PART 121, FLYING FROM THE CHICAGO O’HARE INTERNATIONAL AIRPORT (KORD) TO THE BALTIMORE/WASHINGTON INTERNATIONAL THURGOOD MARSHALL AIRPORT (KBWI), WHILE AT CRUISE AT FLIGHT LEVEL 370, THE CREW OBSERVED A RSVR LIGHT ON THE LEFT HYDRAULIC SYSTEM.  THE FLIGHT CREW PULLED UP THE EICAS STATUS PAGE AND OBSERVED A HYDRAULIC QUANTITY OF 0.48 AND DECREASING.  THE CAPTAIN CONTINUED TO FLY THE AIRCRAFT AS THE FIRST OFFICER RAN THE HYDRAULIC QUANTITY AND HYDRAULIC SYSTEM PRESSURE IRREGULAR CHECKLISTS TO DETERMINE WHAT SYSTEMS WERE AFFECTED.  SUBSEQUENTLY, THE LEFT HYDRAULIC PUMPS WERE TURNED OFF.  AFTER THE CHECKLISTS WERE ACCOMPLISHED, THE CAPTAIN NOTICED THE YOKE WAS DEFLECTED APPROXIMATELY 2 UNITS TO THE LEFT.  THE FLIGHT CREW WAS CONCERNED ABOUT THE DEFLECTION OF THE AILERONS AND ELECTED TO DECLARE AN EMERGENCY AND LAND AT PITTSBURGH INTERNATIONAL AIRPORT (KPIT).  THE AIRCRAFT LANDED ON RUNWAY 28L WITHOUT FURTHER INCIDENT.  THE AIRCRAFT RESCUE FIRE FIGHTING (ARFF) UNITS HAD RESPONDED, YET WERE NOT UTILIZED.  THE CREW REPORTED THE HYDRAULIC FLUID QUANTITY DROPPED TO .31 IN FLIGHT AND ONCE AT THE GATE THE QUANTITY WAS .21.  THE CREW STATED THE HYDRAULIC FLUID QUANTITY NEVER WENT TO ZERO.  THE FLIGHT CREW’S ACTIONS OR LACK OF ACTIONS DID NOT CONTRIBUTE TO THIS INCIDENT.  THERE WERE NO INJURIES TO THE CEW OR PASSENGERS.   JETTPRO MAINTENANCE INITIALLY ASSESSED THE PROBLEM AND FOUND HYDRAULIC LEAK ON THE NUMBER ONE ENGINE.  THE LEAK WAS ISOLATED TO THE HYDRAULIC BLEEDER PLUG ON THE ENGINE DRIVEN HYDRAULIC PUMP OUTPUT LINE.  JETTPRO NOTIFIED UNITED AIRLINES, WHO DISPATCHED MECHANICS WITH THE REPLACEMENT PARTS.  UNITED AIRLINES MAINTENANCE REPLACED THE O-RING FOR THE HYDRAULIC BLEEDER PLUG, SERVICED THE HYDRAULIC SYSTEM, AND RETURNED THE AIRCRAFT TO SERVICE.

## Other reports on N529UA (1)

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

- [Incident 20140501024479I](https://openairdocs.org/incident/20140501024479I), May 1, 2014: Boeing 757-222 (N529UA), Louisville, KY, Substantial damage. UA206 from den (757, ac #N529UA) was being marshaled into gate #12A by a tdy ua ramp supervisor from ewr. A dgs agent trained to operate the jet bridge was in…

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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