<< >> NASA ASRS Report 1293693, September 2015

B737 flight crew reported landing with less than planned flaps when the flaps locked out because of non-SOP operation.

Attributes
ACN	1293693
Time
Date	201509
Local Time Of Day	0601-1200
Place
Locale Reference	IAH.Airport
State Reference	TX
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Landing
Flight Plan	IFR
Component
Aircraft Component	Trailing Edge Flap
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 180 Flight Crew Total 14500 Flight Crew Type 2400
Person 2
Function	Pilot Not Flying First Officer
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy

Narrative:

Landing runway 27 iah at 1500 ft AGL called for 25 flaps. Setting was gear down and flaps 15. First officer (first officer) inadvertently set flaps past intended position and immediately reset the flaps to 25. This caused a flap lockout. Flaps approximately 20-22. Quick discussion of flap setting; ref speed; landing distance on a dry runway. We both agreed it was safe to land with flap setting and repositioned flap handle to 15 in case of inadvertent movement; used flaps 15 ref plus 5. Unforecast thunderstorms were a threat as they were encroaching the field. After landing we were able to successfully move flaps to zero then back to 30. We did not communicate with the tower that we were less than landing flaps. We decided not to make a logbook entry since the flaps operated normally.

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Original NASA ASRS Text

Title: B737 flight crew reported landing with less than planned flaps when the flaps locked out because of non-SOP operation.

Narrative: Landing runway 27 IAH at 1500 ft AGL called for 25 flaps. Setting was gear down and flaps 15. FO (First Officer) inadvertently set flaps past intended position and immediately reset the flaps to 25. This caused a flap lockout. Flaps approximately 20-22. Quick discussion of flap setting; ref speed; landing distance on a dry runway. We both agreed it was safe to land with flap setting and repositioned flap handle to 15 in case of inadvertent movement; used flaps 15 ref plus 5. Unforecast thunderstorms were a threat as they were encroaching the field. After landing we were able to successfully move flaps to zero then back to 30. We did not communicate with the tower that we were less than landing flaps. We decided not to make a logbook entry since the flaps operated normally.

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.