<< >> NASA ASRS Report 943270, April 2011

An SF340 crew was unable to extend flaps. QRH procedures were followed and a successful no flap landing was made. On the ground the flap control circuit breaker was found open.

Attributes
ACN	943270
Time
Date	201104
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	SF 340B
Operating Under FAR Part	Part 121
Flight Phase	Descent
Flight Plan	IFR
Component
Aircraft Component	Flap Control (Trailing & Leading Edge)
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 1 Flight Crew Total 5800 Flight Crew Type 3800
Person 2
Function	Flight Attendant (On Duty)
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Upon decent we received a flaps warning on our cwp. We looked in the book and found the proper non-normal procedure and followed it. We were unable to get the flaps to extend and we declared an emergency. We took the proper performance calculations and determined that it was safe to land and returned for an uneventful no-flap landing. Upon further review on the ground we found that we had not checked the circuit breakers (circuit breaker) and that the flap control circuit breaker was popped.

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Original NASA ASRS Text

Title: An SF340 crew was unable to extend flaps. QRH procedures were followed and a successful no flap landing was made. On the ground the flap control circuit breaker was found open.

Narrative: Upon decent we received a FLAPS warning on our CWP. We looked in the book and found the proper non-normal procedure and followed it. We were unable to get the flaps to extend and we declared an emergency. We took the proper performance calculations and determined that it was safe to land and returned for an uneventful no-flap landing. Upon further review on the ground we found that we had not checked the Circuit Breakers (CB) and that the flap control CB was popped.

Data retrieved from NASA's ASRS site as of April 2012 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.