Engine fails to develop maximum thrust shortly after takeoff.

Attributes
ACN	299334
Time
Date	199503
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : azo
State Reference	MI
Altitude	agl bound lower : 0 agl bound upper : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : azo tower : mco
Operator	common carrier : air carrier
Make Model Name	SF 340A
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : takeoff climbout : initial
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 255 flight time total : 6500 flight time type : 4500
ASRS Report	299334
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 250 flight time total : 900 flight time type : 2500
ASRS Report	298439
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

After rotation/unstick noted #1 engine propeller RPM at 1100 propeller RPM (1390 is appropriate for takeoff power). Checked condition lever at maximum and confirmed at maximum. Returned to azo for landing. On takeoff, did not notice any yawing moment nor any noticeable harmonics due to propellers out of sync, nor did note #1 propeller RPM during takeoff roll. As soon as the main gear touched down on landing the #1 propeller RPM climbed to 1350 propeller RPM. Tower notified of problem and I indicated that it may be an indicator problem. Without request from us the tower rolled the equipment for our landing, no other problems occurred, landing uneventful. Supplemental information from acn 298439: subsequent trouble-shooting (maintenance person) found a failed propeller overspd governor.

Original NASA ASRS Text

Title: ENG FAILS TO DEVELOP MAX THRUST SHORTLY AFTER TKOF.

Narrative: AFTER ROTATION/UNSTICK NOTED #1 ENG PROP RPM AT 1100 PROP RPM (1390 IS APPROPRIATE FOR TKOF PWR). CHKED CONDITION LEVER AT MAX AND CONFIRMED AT MAX. RETURNED TO AZO FOR LNDG. ON TKOF, DID NOT NOTICE ANY YAWING MOMENT NOR ANY NOTICEABLE HARMONICS DUE TO PROPS OUT OF SYNC, NOR DID NOTE #1 PROP RPM DURING TKOF ROLL. AS SOON AS THE MAIN GEAR TOUCHED DOWN ON LNDG THE #1 PROP RPM CLBED TO 1350 PROP RPM. TWR NOTIFIED OF PROB AND I INDICATED THAT IT MAY BE AN INDICATOR PROB. WITHOUT REQUEST FROM US THE TWR ROLLED THE EQUIP FOR OUR LNDG, NO OTHER PROBS OCCURRED, LNDG UNEVENTFUL. SUPPLEMENTAL INFO FROM ACN 298439: SUBSEQUENT TROUBLE-SHOOTING (MAINT PERSON) FOUND A FAILED PROP OVERSPD GOVERNOR.

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.