<< >> NASA ASRS Report 432451, March 1999

A B757 rejected takeoff at 100 KTS due to #2 integrated drive generator failure caused by a low oil condition.

Attributes
ACN	432451
Time
Date	199903
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bos.airport
State Reference	MA
Altitude	agl single value : 0
Environment
Flight Conditions	IMC
Weather Elements	Rain
Light	Dusk
Aircraft 1
Controlling Facilities	tower : bos.tower
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	432451
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : gen drive indication
Resolutory Action	flight crew : rejected takeoff
Consequence	other other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : inspection performance deficiency : scheduled maintenance
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

We received takeoff clearance for runway 4R, at 217000 pounds. Runway wet, maximum power was applied at 1.77 EPR. At approximately 100 KTS, the right engine generator failed. The abort was started at approximately 100 KTS, V1 was 131 KTS -- well below. The aircraft was stopped and exited the runway. We checked the brake cooling chart, called maintenance, and taxied back to the gate. All entries were made for the idg and items. After maintenance repaired the aircraft we then left for lax. Callback conversation with reporter revealed the following information: the reporter stated the direct cause of the rejected takeoff was the #2 engine integrated drive generator failure. The reporter said maintenance found the integrated drive generator low on oil and then replaced the generator control unit. The reporter stated the trip was delayed longer after servicing the integrated drive generator oil as it was necessary to run the engine to check for leaks.

Related reports:

• A B747-400 shut down #2 engine in-flight due to loss of engi...
• A B747-400 in cruise diverted due to loss of oil in #2 engin...
• A B737-700 number 2 generator alerted source off; then drive...
• A line mechanic reports he did not pull and collar circuit b...
• An airbus 320 returned to the field due to a failed #1 integ...
• B767-300 returned to the gate for integrated drive generator...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: A B757 REJECTED TKOF AT 100 KTS DUE TO #2 INTEGRATED DRIVE GENERATOR FAILURE CAUSED BY A LOW OIL CONDITION.

Narrative: WE RECEIVED TKOF CLRNC FOR RWY 4R, AT 217000 LBS. RWY WET, MAX PWR WAS APPLIED AT 1.77 EPR. AT APPROX 100 KTS, THE R ENG GENERATOR FAILED. THE ABORT WAS STARTED AT APPROX 100 KTS, V1 WAS 131 KTS -- WELL BELOW. THE ACFT WAS STOPPED AND EXITED THE RWY. WE CHKED THE BRAKE COOLING CHART, CALLED MAINT, AND TAXIED BACK TO THE GATE. ALL ENTRIES WERE MADE FOR THE IDG AND ITEMS. AFTER MAINT REPAIRED THE ACFT WE THEN LEFT FOR LAX. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE DIRECT CAUSE OF THE REJECTED TKOF WAS THE #2 ENG INTEGRATED DRIVE GENERATOR FAILURE. THE RPTR SAID MAINT FOUND THE INTEGRATED DRIVE GENERATOR LOW ON OIL AND THEN REPLACED THE GENERATOR CTL UNIT. THE RPTR STATED THE TRIP WAS DELAYED LONGER AFTER SVCING THE INTEGRATED DRIVE GENERATOR OIL AS IT WAS NECESSARY TO RUN THE ENG TO CHK FOR LEAKS.

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.