DC9-30 crew found the aircraft maintenance records did not reflect the actual engines installed on t...

Attributes
ACN	555776
Time
Date	200207
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	DC-9 30
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
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 : 20000 flight time type : 12000
ASRS Report	555776
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : less severe maintenance problem : improper documentation maintenance problem : improper maintenance other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Consequence	other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : logbook entry performance deficiency : training performance deficiency : non compliance with legal requirements
Supplementary
Problem Areas	Maintenance Human Performance Company
Primary Problem	Company

Narrative:

Planned departure from ZZZ, based on misinfo, as to engine performance. Release showed operation of mixed engines -7 and -9 pwred placard on aircraft engine console showed -7 and -9 power correction for takeoff power. As far as flight crew and dispatch were concerned, mixed engines were still on aircraft and power corrections were to be made. During 'C' check, mixed engines were removed and -9 (2 now) were hung and returned to line. Somehow, maintenance did not pass on necessary paperwork corrections to reflect same engines, -9, on aircraft. If change to logbook was made, I missed it. Aircraft returned to gate and did not depart due to other maintenance problem. Greater review of maintenance signoffs must be done, by flight crew and dispatch.

Original NASA ASRS Text

Title: DC9-30 CREW FOUND THE ACFT MAINT RECORDS DID NOT REFLECT THE ACTUAL ENGS INSTALLED ON THE ACFT.

Narrative: PLANNED DEP FROM ZZZ, BASED ON MISINFO, AS TO ENG PERFORMANCE. RELEASE SHOWED OP OF MIXED ENGS -7 AND -9 PWRED PLACARD ON ACFT ENG CONSOLE SHOWED -7 AND -9 PWR CORRECTION FOR TKOF PWR. AS FAR AS FLC AND DISPATCH WERE CONCERNED, MIXED ENGS WERE STILL ON ACFT AND PWR CORRECTIONS WERE TO BE MADE. DURING 'C' CHK, MIXED ENGS WERE REMOVED AND -9 (2 NOW) WERE HUNG AND RETURNED TO LINE. SOMEHOW, MAINT DID NOT PASS ON NECESSARY PAPERWORK CORRECTIONS TO REFLECT SAME ENGS, -9, ON ACFT. IF CHANGE TO LOGBOOK WAS MADE, I MISSED IT. ACFT RETURNED TO GATE AND DID NOT DEPART DUE TO OTHER MAINT PROB. GREATER REVIEW OF MAINT SIGNOFFS MUST BE DONE, BY FLC AND DISPATCH.

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.

DC9-30 crew found the aircraft maintenance records did not reflect the actual engines installed on the aircraft.