Commuter light transport landed flaps up with the flaps failed to extend when selected.

Attributes
ACN	162044
Time
Date	199011
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : cwa
State Reference	WI
Altitude	msl bound lower : 0 msl bound upper : 3000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zmp tower : stl
Operator	common carrier : air carrier
Make Model Name	Light Transport, High Wing, 2 Turboprop Eng
Flight Phase	descent : approach descent other landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 3400 flight time type : 2200
ASRS Report	162044
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency none taken : anomaly accepted none taken : unable
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

While executing approach checklists, we realized the flags failed to come down. We carried out the appropriate emergency checklists. The flaps remained in the up position. We requested crash, fire and rescue on the field (cwa), declared an emergency and landed at cwa. After landing, the flaps functioned normally. Maintenance suspected the mechanical signaling linkage to the flaps had frozen in flight. The aircraft was ferried back to our maintenance facility at ord, removed from revenue service until the flaps could be serviced.

Original NASA ASRS Text

Title: COMMUTER LTT LANDED FLAPS UP WITH THE FLAPS FAILED TO EXTEND WHEN SELECTED.

Narrative: WHILE EXECUTING APCH CHKLISTS, WE REALIZED THE FLAGS FAILED TO COME DOWN. WE CARRIED OUT THE APPROPRIATE EMER CHKLISTS. THE FLAPS REMAINED IN THE UP POS. WE REQUESTED CRASH, FIRE AND RESCUE ON THE FIELD (CWA), DECLARED AN EMER AND LANDED AT CWA. AFTER LNDG, THE FLAPS FUNCTIONED NORMALLY. MAINT SUSPECTED THE MECHANICAL SIGNALING LINKAGE TO THE FLAPS HAD FROZEN IN FLT. THE ACFT WAS FERRIED BACK TO OUR MAINT FAC AT ORD, REMOVED FROM REVENUE SVC UNTIL THE FLAPS COULD BE SERVICED.

Data retrieved from NASA's ASRS site as of July 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.