 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
B737 flight crew reported flying an approach to the point of before landing checklist before noticing the flaps were not extending as commanded.
| Attributes | |
| ACN | 1272435 |
| Time | |
| Date | 201506 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | SEA.Airport |
| State Reference | WA |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Flap/Slat Indication |
| Person 1 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 167 |
| Person 2 | |
| Function | Pilot Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Deviation - Speed All Types |
Narrative:
During approach to land from ILS to 16L; I/we were too slow to recognize the flaps were not extending. It wasn't until we read the before landing checklist with aircraft slowing towards approach speed that I saw the flaps were at zero even though 30 was selected.this was my first flight following two weeks of vacation and first day with new checklists and QRH. I didn't sleep well the night before and therefore was a little tired for the first leg. As a result of all these factors; I felt my scan and sa were a little off. Not monitoring the flap indicator as flaps were selected and being slow to put all the pieces together unfortunately showed my habit patterns and scan were not caught up with my normal flow performance.as soon as we noticed the malfunction; we executed a go-around from above 1000' to work the issue. I don't believe the airspeed got below 150-145 KIAS before executing the go-around. While certainly manageable; using the new QRH for the first time took a little extra time to make sure I was in the right checklist and properly following the new page formats.just before noticing the zero flaps I saw the slow speed indicator flashing on the MCP panel and was wondering why; about the same time the first officer (PF) was thinking it was taking longer than normal for the aircraft to slow. Had we voiced these concerns to each other; we may have caught the malfunction sooner.
Original NASA ASRS Text
Title: B737 flight crew reported flying an approach to the point of Before Landing Checklist before noticing the flaps were not extending as commanded.
Narrative: During approach to land from ILS to 16L; I/we were too slow to recognize the flaps were not extending. It wasn't until we read the Before Landing Checklist with aircraft slowing towards approach speed that I saw the flaps were at zero even though 30 was selected.This was my first flight following two weeks of vacation and first day with new checklists and QRH. I didn't sleep well the night before and therefore was a little tired for the first leg. As a result of all these factors; I felt my scan and SA were a little off. Not monitoring the flap indicator as flaps were selected and being slow to put all the pieces together unfortunately showed my habit patterns and scan were not caught up with my normal flow performance.As soon as we noticed the malfunction; we executed a go-around from above 1000' to work the issue. I don't believe the airspeed got below 150-145 KIAS before executing the go-around. While certainly manageable; using the new QRH for the first time took a little extra time to make sure I was in the right checklist and properly following the new page formats.Just before noticing the zero flaps I saw the slow speed indicator flashing on the MCP panel and was wondering why; about the same time the FO (PF) was thinking it was taking longer than normal for the aircraft to slow. Had we voiced these concerns to each other; we may have caught the malfunction sooner.
Data retrieved from NASA's ASRS site 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.