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A B737-800 flight crew had some internal confusion on how to deal with an intermittent wheel well fire warning. They decided to divert as a precaution.
| Attributes | |
| ACN | 1020502 |
| Time | |
| Date | 201206 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Component | |
| Aircraft Component | Fire/Overheat Warning |
| Person 1 | |
| Function | First Officer |
| Experience | Flight Crew Last 90 Days 145 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
On departure; somewhere near FL250; we experienced the illumination of the wheel well fire warning light and the fire warning bell sounded. The initial indication lasted approximately four seconds; extinguished briefly; sounded [again] briefly; and then extinguished with no further indications. Though the pilots immediately reached for the QRH; the indications extinguished prior to the accomplishment of step 1 in the procedure section of the wheel well fire checklist. There was a disagreement as to whether the checklist items applied to this specific situation (was there any relief from the procedures); as a result of the indications extinguishing prior to the accomplishment of the first step in the procedural section of the checklist. After voicing his opinion; the first officer asked the captain to confirm his decisions with someone outside of the flight deck. Upon reaching the cruise altitude of FL340; the captain called company. After a bit of coordination and discussion via radio and ACARS; it was suggested that we land as soon as possible. We complied with no further complications. Note: the new dispatch release appears to have taken off the operations frequencies associated with points along the route. This was a distraction.
Original NASA ASRS Text
Title: A B737-800 Flight Crew had some internal confusion on how to deal with an intermittent wheel well fire warning. They decided to divert as a precaution.
Narrative: On departure; somewhere near FL250; we experienced the illumination of the WHEEL WELL Fire Warning light and the fire warning bell sounded. The initial indication lasted approximately four seconds; extinguished briefly; sounded [again] briefly; and then extinguished with no further indications. Though the pilots immediately reached for the QRH; the indications extinguished prior to the accomplishment of Step 1 in the Procedure section of the Wheel Well Fire Checklist. There was a disagreement as to whether the checklist items applied to this specific situation (was there any relief from the procedures); as a result of the indications extinguishing prior to the accomplishment of the first step in the procedural section of the checklist. After voicing his opinion; the First Officer asked the Captain to confirm his decisions with someone outside of the flight deck. Upon reaching the cruise altitude of FL340; the Captain called Company. After a bit of coordination and discussion via radio and ACARS; it was suggested that we land as soon as possible. We complied with no further complications. Note: The new Dispatch Release appears to have taken off the Operations frequencies associated with points along the route. This was a distraction.
Data retrieved from NASA's ASRS site as of July 2013 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.