# Incident 20060831018039I: Saab 340B, Pittsburgh, PA, August 31, 2006

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: August 31, 2006, 16:40 local time
- Place: Pittsburgh, PA
- Airport: Greater Pittsburgh International
- Damage: Minor damage
- Phase of flight: Ground Taxi, Other Airplane
- Operating rules: Air carrier (Part 121)
- Operator: NSVA
- Location: 40.4406° N, 79.9959° W: Placed by OpenAirDocs: center of Pittsburgh, PA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.4406&lon=-79.9959&mi=10
- Aircraft: N237MJ, a cancelled registration (https://openairdocs.org/deregistered/N237MJ-2018-03-02) (OpenAirDocs)
- Registry model: Saab-Scania SAAB 340B (registry code 7860101, https://openairdocs.org/model/saab-scania-saab-340b) (OpenAirDocs)
- Registry engine: GE CT7-SER series (registry code 30031, https://openairdocs.org/engine/ge-ct7-ser-series) (OpenAirDocs)
- Reported make and model: SAAB 340B
- People aboard: 18
- Fatal injuries: 0
- Pilot flight hours: 2,700 total, 1,672 in this make and model, 249 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20060831018039I

## Narrative

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

(-23) ON AUGUST 31, 2006, AT APPROXIMATELY 1640 LOCAL TIME, COLGAN AIR (NSVA) FLIGHT 4707, A SF-340, N237MJ, OPERATING UNDER CODE SHARE WITH USAIRWAYS, UNDER TITLE 14 CFR PART 121, WAS INVOLVED IN AN AIRCRAFT INCIDENT. IT WAS REPORTED BY THE EASTERN REGION OPERATIONS CENTER, THAT COLGAN AIRLINES FLIGHT 4707, WHILE TAXIING ON TAXIWAY TANGO AT PITTSBURGH INTERNATIONAL AIRPORT (KPIT), VEERED OFF THE RIGHT SIDE OF THE TAXIWAY FOR UNKNOWN REASONS WITH 15 PASSENGERS AND A CREW OF 3. INVESTIGATION OF THIS INCIDENT WAS CONDUCTED BY THIS OFFICE IN COLLABORATION WITH ^PRIVACY DATA OM^ DIRECTOR OF SAFETY, COLGAN AIRLINES, INC. AND THE CERTIFICATE HOLDER'S CHDO. ON SEPTEMBER 11, 2006, DOCUMENTS WERE PRESENTED TO THIS OFFICE BY ^PRIVACY DATA OM^ CONCERNING THE CIRCUMSTANCES OF THIS INCIDENT. ^PRIVACY D^ STATED "COLGAN AIRLINES FLIGHT 4707 DEPARTED KPIT AND UPON TAKE-OFF THE CREW COULD NOT RETRACT THE LANDING GEAR, AND THEN RETURNED TO KPIT. THE CREW EXPERIENCED AN INTERMITTENT LOSS OF THE HYDRAULIC SYSTEM AND HYDRAULIC PUMP. AFTER CLEARING THE ACTIVE RUNWAY THE CREW HAD AGAIN EXPERIENCED AN INTERMITTENT HYDRAULIC PUMP, BUT HAD SUFFICIENT HYDRAULIC ACCUMULATOR PRESSURE. FLIGHT 4707 BEGAN TO TAXITO THE RAMP/ASSIGNED GATE AREA, ON TAXIWAY TANGO. SHORTLY THEREAFTER THE HYDRAULIC PUMP FAILED AND AFTER SEVERAL STEERING AND BRAKE APPLICATIONS, THE ACCUMULATOR PRESSURE WAS EXHAUSED. FLIGHT 4707 VEERED OFF TAXIWAY TANGO AND CAME TO REST ADJACENT TO THE TAXIWAY. FLIGHT 4707 STRUCK SEVERAL TAXIWAY LIGHTS CAUSING DAMAGE TO THE ENGINE, AND PROPELLER." COLGAN AIRLINES, INC. IS AN AVIATION SAFEY ACTION PROGRAM (ASAP) CARRIER AND THE INVESTIGATION OF THIS INCIDENT BY THE EVENTS REVIEW COMMITTEE (ERC) REVEALED, THE FLIGHT OPERATIONS POLICY AND PROCEDURES MANUAL (FOPPM) DID NOT ADDRESS A PROCEDURE FOR AN EVENT OF THIS NATURE. THEREFORE, ^PRIVACY D^ STATED "A REVISION WILL BE MADE TO THE FOPPM ADDRESSING THIS INCIDENT AND APPROPRIATE PROCEDURES TO ADDRESS THIS TYPE OF SCENARIO. THE REVISION WILL STATE IF PRACTICABLE CLEAR THE RUNWAY, STOP, REQUEST A TOW TO THE RAMP AREA, RATHER THAN TAXI ONLY ON ACCUMULATOR PRESSURE." ^PRIVACY D^ FURTHER STATED "THE CERTIFICATE HOLDER IMMEDIATELY ISSUED A SAFETY BULLETIN THAT ADDRESSES THIS INCIDENT." ^PRIVACY DATA OMITTED^                                                                                                                                       ^PRIVACY DATA OMITTED^ . THE CERTIFICATE HOLDER WILL ALSO SUBMIT A REVISION TO THEIR AIRCRAFT CHECK LIST, TRAINING PROGRAM ON THIS SUBJECT MATTER AND INCLUDE THIS SCENARIO INTO THEIR CHECKING MODULE FOR FLIGHT CREW EVALUATION. SUBMISSION OF THIS REPORT CLOSES THIS INCIDENT.

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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