On go around flaps would not retract. Aircraft was air carrier large transport 2 engine.

Attributes
ACN	106386
Time
Date	198903
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : iah
State Reference	TX
Altitude	agl bound lower : 600 agl bound upper : 600
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : iah
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	descent : approach landing : go around
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 130 flight time total : 7000 flight time type : 850
ASRS Report	106386
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

On ILS approach to runway 32R at iah, ATIS WX 4 scattered, 7 broken, 15 overcast, 2 RF, 72/70 winds 320 20 G25, 29.69. Tower winds 310 14 G20. At 1000' on G/south, encountered very heavy rain, airspeed erratic at 500' AGL, captain called for go around when airspeed went to bug plus 25 KTS and 1 DOT high on G/south (windshear). During go around full flaps (25 degrees) failed stuck full down (should have gone to 15 degrees). Captain and first officer noted airspeed going to bug minus 10 KTS, while loud confign warning horn was blaring. Unsure initially of windshear impending stall throttles were temporarily overboosted (full mechanical stops for 10 seconds). Go around was marginal with combination of windshear and full flaps. After identing flap problem, flew uneventful approach to another runway. For a short time crew was in an extreme position. Callback conversation with reporter revealed the following: the flag gauges were sensing a flap discrepancy that did not exist and locked the flaps in their last position. Flight crew could not retract the flaps and made the go around with full flaps extended. It was not a problem once they knew what they had to work with.

Original NASA ASRS Text

Title: ON GO AROUND FLAPS WOULD NOT RETRACT. ACFT WAS ACR LGT 2 ENGINE.

Narrative: ON ILS APCH TO RWY 32R AT IAH, ATIS WX 4 SCATTERED, 7 BROKEN, 15 OVCST, 2 RF, 72/70 WINDS 320 20 G25, 29.69. TWR WINDS 310 14 G20. AT 1000' ON G/S, ENCOUNTERED VERY HVY RAIN, AIRSPD ERRATIC AT 500' AGL, CAPT CALLED FOR GAR WHEN AIRSPD WENT TO BUG PLUS 25 KTS AND 1 DOT HIGH ON G/S (WINDSHEAR). DURING GAR FULL FLAPS (25 DEGS) FAILED STUCK FULL DOWN (SHOULD HAVE GONE TO 15 DEGS). CAPT AND F/O NOTED AIRSPD GOING TO BUG MINUS 10 KTS, WHILE LOUD CONFIGN WARNING HORN WAS BLARING. UNSURE INITIALLY OF WINDSHEAR IMPENDING STALL THROTTLES WERE TEMPORARILY OVERBOOSTED (FULL MECHANICAL STOPS FOR 10 SECS). GAR WAS MARGINAL WITH COMBINATION OF WINDSHEAR AND FULL FLAPS. AFTER IDENTING FLAP PROB, FLEW UNEVENTFUL APCH TO ANOTHER RWY. FOR A SHORT TIME CREW WAS IN AN EXTREME POS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: THE FLAG GAUGES WERE SENSING A FLAP DISCREPANCY THAT DID NOT EXIST AND LOCKED THE FLAPS IN THEIR LAST POS. FLT CREW COULD NOT RETRACT THE FLAPS AND MADE THE GAR WITH FULL FLAPS EXTENDED. IT WAS NOT A PROB ONCE THEY KNEW WHAT THEY HAD TO WORK WITH.

Data retrieved from NASA's ASRS site as of August 2007 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.