An MD88 was continued in service after #1 and #2 engines were over-boosted beyond maximum limits.

Attributes
ACN	401577
Time
Date	199804
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz
State Reference	US
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-88
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	ground : preflight other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : atp
Experience	flight time last 90 days : 210 flight time total : 18000 flight time type : 4500
ASRS Report	401577
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure non adherence : far other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

I served as captain and PIC on air carrier flight xyz from ZZZ to XXX via YYY on apr/xx/98. The inbound crew in ZZZ informed me that they had experienced a windshear upon arrival and had firewalled both engines. Maximum EPR was 2.07. My discussions with air carrier maintenance indicated that engineering would compute other engine parameters (N1, N2, egt) based on logbook EPR of 2.07, altitude and temperature. It was determined that the computed engine parameters were below maximum engine limits. A contract mechanic visually inspected both engines and reported to me no abnormalities. The contract mechanic signed off the logbook and I flew the revenue flight to YYY and XXX. I have been subsequently informed that both engines were removed from the aircraft due to the data which was recorded on the flight recorder. Although many thorough procedures were followed in this example to determine that the aircraft was airworthy to fly, it appears that the engines were operated beyond limits on its arrival into ZZZ.

Original NASA ASRS Text

Title: AN MD88 WAS CONTINUED IN SVC AFTER #1 AND #2 ENGS WERE OVER-BOOSTED BEYOND MAX LIMITS.

Narrative: I SERVED AS CAPT AND PIC ON ACR FLT XYZ FROM ZZZ TO XXX VIA YYY ON APR/XX/98. THE INBOUND CREW IN ZZZ INFORMED ME THAT THEY HAD EXPERIENCED A WINDSHEAR UPON ARR AND HAD FIREWALLED BOTH ENGS. MAX EPR WAS 2.07. MY DISCUSSIONS WITH ACR MAINT INDICATED THAT ENGINEERING WOULD COMPUTE OTHER ENG PARAMETERS (N1, N2, EGT) BASED ON LOGBOOK EPR OF 2.07, ALT AND TEMP. IT WAS DETERMINED THAT THE COMPUTED ENG PARAMETERS WERE BELOW MAX ENG LIMITS. A CONTRACT MECH VISUALLY INSPECTED BOTH ENGS AND RPTED TO ME NO ABNORMALITIES. THE CONTRACT MECH SIGNED OFF THE LOGBOOK AND I FLEW THE REVENUE FLT TO YYY AND XXX. I HAVE BEEN SUBSEQUENTLY INFORMED THAT BOTH ENGS WERE REMOVED FROM THE ACFT DUE TO THE DATA WHICH WAS RECORDED ON THE FLT RECORDER. ALTHOUGH MANY THOROUGH PROCS WERE FOLLOWED IN THIS EXAMPLE TO DETERMINE THAT THE ACFT WAS AIRWORTHY TO FLY, IT APPEARS THAT THE ENGS WERE OPERATED BEYOND LIMITS ON ITS ARR INTO ZZZ.

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.