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A B737-300 returns to the gate twice at phx for a left wing body heat indication with 1 engine and APU running before the aircraft is removed from service.
| Attributes | |
| ACN | 629562 |
| Time | |
| Date | 200409 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : phx.airport |
| State Reference | AZ |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : las.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : pushback ground : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 629562 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : warning light other flight crewa |
| Resolutory Action | none taken : unable |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
After pushback was complete, and the #2 engine was running, the left wing body heat light illuminated with the APU running and its bleed valve open. After completing the QRH, maintenance control requested a gate return which we did without incident. Maintenance checked for leaks, ran the engine to try and duplicate the problem, but couldn't, then cleared/released the aircraft. During the second pushback, with the same engine, APU, and bleed valve scenario, the light illuminated again. We again returned to the gate. The flight was eventually cancelled.
Original NASA ASRS Text
Title: A B737-300 RETURNS TO THE GATE TWICE AT PHX FOR A L WING BODY HEAT INDICATION WITH 1 ENG AND APU RUNNING BEFORE THE ACFT IS REMOVED FROM SVC.
Narrative: AFTER PUSHBACK WAS COMPLETE, AND THE #2 ENG WAS RUNNING, THE L WING BODY HEAT LIGHT ILLUMINATED WITH THE APU RUNNING AND ITS BLEED VALVE OPEN. AFTER COMPLETING THE QRH, MAINT CTL REQUESTED A GATE RETURN WHICH WE DID WITHOUT INCIDENT. MAINT CHKED FOR LEAKS, RAN THE ENG TO TRY AND DUPLICATE THE PROB, BUT COULDN'T, THEN CLRED/RELEASED THE ACFT. DURING THE SECOND PUSHBACK, WITH THE SAME ENG, APU, AND BLEED VALVE SCENARIO, THE LIGHT ILLUMINATED AGAIN. WE AGAIN RETURNED TO THE GATE. THE FLT WAS EVENTUALLY CANCELLED.
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.