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A B727-200A on climb out at 4000 ft declared an emergency shutdown #3 engine and diverted due to #3 engine start valve 'open' light illuminated.
| Attributes | |
| ACN | 436725 |
| Time | |
| Date | 199905 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : phl.airport |
| State Reference | PA |
| Altitude | agl single value : 4000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : phl.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial |
| Route In Use | departure : other published ifr departure |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 230 flight time total : 14500 flight time type : 10300 |
| ASRS Report | 436725 |
| Person 2 | |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : start value open light |
| Resolutory Action | controller : issued new clearance flight crew : diverted to another airport flight crew : landed in emergency condition flight crew : declared emergency none taken : unable |
| Consequence | other |
| Factors | |
| Maintenance | performance deficiency : inspection performance deficiency : scheduled maintenance |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Departed phl on runway 9L. On climb out at approximately 3100 ft MSL, the start valve open light for engine #3 illuminated. Light remained on for approximately 2 mins while operations manual procedures xyz was referenced. Start valve open light for engine #3 flickered and then went out. Dispatch and maintenance control were advised at approximately XA03Z. After conversation with maintenance control and dispatch. Start valve open light reilluminated and remained illuminated. Advised maintenance control and dispatch that operations manual procedure xyz would be completed. Crew declared an emergency with phl departure and stated intentions to dump approximately 5000 pounds of fuel and return to land at phl. Crew stated exact nature of emergency with phl departure and specific requests for type of assistance required while on frequency and during landing. Crew restated these intentions to phl tower on contact. Lead flight attendant was called forward for aircraft emergency briefing and was reconsulted twice after initial briefing and prior to landing. Dispatch was renotified of our specific situation, intentions and we confirmed declaration of aircraft emergency. Request made through dispatch to coordinate emergency equipment on ground in phl. Also complied with operations manual procedures XYZ0. Engine precautionary shutdown and operations manual ABC4 fuel dumping. Flight landed under maximum gross landing weight, approximately 148000 pounds. Passenger and phl station were briefed. Maintenance replaced engine #3 start valve and pressure sensing switch for start valve open. Callback conversation with reporter revealed the following information: the reporter stated the problem was caused by chaffed wiring on the engine and was found when maintenance replaced the start valve and start valve pressure switch. The reporter said the start valve 'open' light was intermittent in operation and after the wiring was repaired no further reports were made.
Original NASA ASRS Text
Title: A B727-200A ON CLBOUT AT 4000 FT DECLARED AN EMER SHUTDOWN #3 ENG AND DIVERTED DUE TO #3 ENG START VALVE 'OPEN' LIGHT ILLUMINATED.
Narrative: DEPARTED PHL ON RWY 9L. ON CLBOUT AT APPROX 3100 FT MSL, THE START VALVE OPEN LIGHT FOR ENG #3 ILLUMINATED. LIGHT REMAINED ON FOR APPROX 2 MINS WHILE OPS MANUAL PROCS XYZ WAS REFED. START VALVE OPEN LIGHT FOR ENG #3 FLICKERED AND THEN WENT OUT. DISPATCH AND MAINT CTL WERE ADVISED AT APPROX XA03Z. AFTER CONVERSATION WITH MAINT CTL AND DISPATCH. START VALVE OPEN LIGHT REILLUMINATED AND REMAINED ILLUMINATED. ADVISED MAINT CTL AND DISPATCH THAT OPS MANUAL PROC XYZ WOULD BE COMPLETED. CREW DECLARED AN EMER WITH PHL DEP AND STATED INTENTIONS TO DUMP APPROX 5000 LBS OF FUEL AND RETURN TO LAND AT PHL. CREW STATED EXACT NATURE OF EMER WITH PHL DEP AND SPECIFIC REQUESTS FOR TYPE OF ASSISTANCE REQUIRED WHILE ON FREQ AND DURING LNDG. CREW RESTATED THESE INTENTIONS TO PHL TWR ON CONTACT. LEAD FLT ATTENDANT WAS CALLED FORWARD FOR ACFT EMER BRIEFING AND WAS RECONSULTED TWICE AFTER INITIAL BRIEFING AND PRIOR TO LNDG. DISPATCH WAS RENOTIFIED OF OUR SPECIFIC SIT, INTENTIONS AND WE CONFIRMED DECLARATION OF ACFT EMER. REQUEST MADE THROUGH DISPATCH TO COORDINATE EMER EQUIP ON GND IN PHL. ALSO COMPLIED WITH OPS MANUAL PROCS XYZ0. ENG PRECAUTIONARY SHUTDOWN AND OPS MANUAL ABC4 FUEL DUMPING. FLT LANDED UNDER MAX GROSS LNDG WT, APPROX 148000 LBS. PAX AND PHL STATION WERE BRIEFED. MAINT REPLACED ENG #3 START VALVE AND PRESSURE SENSING SWITCH FOR START VALVE OPEN. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE PROB WAS CAUSED BY CHAFFED WIRING ON THE ENG AND WAS FOUND WHEN MAINT REPLACED THE START VALVE AND START VALVE PRESSURE SWITCH. THE RPTR SAID THE START VALVE 'OPEN' LIGHT WAS INTERMITTENT IN OP AND AFTER THE WIRING WAS REPAIRED NO FURTHER RPTS WERE MADE.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.