<< >> NASA ASRS Report 1082083, April 2013

When they received a le flaps transit warning as they passed through FL230 the flight crew of a B737-800 declared an emergency and returned to their departure airport. Maintenance determined it was a flap sensor problem.

Attributes
ACN	1082083
Time
Date	201304
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZZ.Airport
State Reference	FO
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	Flap Control (Trailing & Leading Edge)
Person 1
Function	Pilot Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

While climbing through FL230 the le flap transit light illuminated. The captain declared an emergency with ATC and descended to FL200 and slowed to less than 230 knots. The captain was the pm and QRH procedures were followed. Dispatch was notified via ACARS and operations was notified via voice for gate information. Normal approach and landing. Maintenance determined the sensor was inoperative.

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Original NASA ASRS Text

Title: When they received a LE FLAPS TRANSIT warning as they passed through FL230 the flight crew of a B737-800 declared an emergency and returned to their departure airport. Maintenance determined it was a flap sensor problem.

Narrative: While climbing through FL230 the LE FLAP TRANSIT light illuminated. The Captain declared an emergency with ATC and descended to FL200 and slowed to less than 230 knots. The Captain was the PM and QRH procedures were followed. Dispatch was notified via ACARS and Operations was notified via voice for gate information. Normal approach and landing. Maintenance determined the sensor was inoperative.

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.