<< >> NASA ASRS Report 516690, July 2001

A do-328 PIC after takeoff report of losing torque on the left engine, the left generator and exceeding the flap extended speed during the return land at pit, PA.

Attributes
ACN	516690
Time
Date	200107
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : fit.airport
State Reference	PA
Altitude	agl bound lower : 0 agl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : pit.tower artcc : zfw.artcc
Operator	common carrier : air carrier
Make Model Name	Do 328 TP (Turboprop)
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 240 flight time total : 3800 flight time type : 2000
ASRS Report	516690
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure other anomaly
Independent Detector	aircraft equipment other aircraft equipment : torque meter other flight crewa
Resolutory Action	aircraft : equipment problem dissipated flight crew : diverted to another airport other
Consequence	other other other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

After takeoff, flight to tri experienced a 45%-55% decrease in torque on the left engine. The first officer was PF. The torque came back to normal within 2-3 seconds. I informed ATC that we would be returning to land. While performing the after takeoff checks, the left generator failed. I completed the after takeoff checks, raising the flaps at this time. A flap overspd message was observed. The left generator was restored using company procedures. We circled and landed following normal company procedures. Upon returning to the gate, I wrote up the left engine and flap overspd items. The flap overspd was caused by the distraction of the situation (engine, generator, radio communication). The safety of the flight was never compromised.

Related reports:

• CL65 captain inadvertently extended the air driven generator...

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Original NASA ASRS Text

Title: A DO-328 PIC AFTER TKOF RPT OF LOSING TORQUE ON THE L ENG, THE L GENERATOR AND EXCEEDING THE FLAP EXTENDED SPD DURING THE RETURN LAND AT PIT, PA.

Narrative: AFTER TKOF, FLT TO TRI EXPERIENCED A 45%-55% DECREASE IN TORQUE ON THE L ENG. THE FO WAS PF. THE TORQUE CAME BACK TO NORMAL WITHIN 2-3 SECONDS. I INFORMED ATC THAT WE WOULD BE RETURNING TO LAND. WHILE PERFORMING THE AFTER TKOF CHKS, THE L GENERATOR FAILED. I COMPLETED THE AFTER TKOF CHKS, RAISING THE FLAPS AT THIS TIME. A FLAP OVERSPD MESSAGE WAS OBSERVED. THE L GENERATOR WAS RESTORED USING COMPANY PROCS. WE CIRCLED AND LANDED FOLLOWING NORMAL COMPANY PROCS. UPON RETURNING TO THE GATE, I WROTE UP THE L ENG AND FLAP OVERSPD ITEMS. THE FLAP OVERSPD WAS CAUSED BY THE DISTR OF THE SIT (ENG, GENERATOR, RADIO COM). THE SAFETY OF THE FLT WAS NEVER COMPROMISED.

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.