Flight crew of an medium large transport unknowingly operated the aircraft with the wrong engine thr...

Attributes
ACN	310340
Time
Date	199507
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : phx
State Reference	AZ
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 300 flight time total : 11200 flight time type : 2000
ASRS Report	310340
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	non adherence : published procedure non adherence other other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Dispatched and operated an aircraft that was certified for 22000 pounds thrust. After round-trip between phx-abq, it was discovered that FMC data was only loaded with data for 20000 pounds thrust. No performance parameters were exceeded during flight. Oversight by technical support to inform dispatch operations that aircraft was only certified to lower power settings is contributed to this occurring. My contribution to this oversight is following: 1) dependence of information on my release is 100 percent correct, 100 percent of the time, matches FMC data, 2) dependence of my first officer, 3) starting a new trip with early am show time after minimum rest and just coming off a pm trip with late show times. (This was a 3 day night trip back to back to a 2 day trip).

Original NASA ASRS Text

Title: FLC OF AN MLG UNKNOWINGLY OPERATED THE ACFT WITH THE WRONG ENG THRUST PERFORMANCE DATA.

Narrative: DISPATCHED AND OPERATED AN ACFT THAT WAS CERTIFIED FOR 22000 LBS THRUST. AFTER ROUND-TRIP BTWN PHX-ABQ, IT WAS DISCOVERED THAT FMC DATA WAS ONLY LOADED WITH DATA FOR 20000 LBS THRUST. NO PERFORMANCE PARAMETERS WERE EXCEEDED DURING FLT. OVERSIGHT BY TECHNICAL SUPPORT TO INFORM DISPATCH OPS THAT ACFT WAS ONLY CERTIFIED TO LOWER PWR SETTINGS IS CONTRIBUTED TO THIS OCCURRING. MY CONTRIBUTION TO THIS OVERSIGHT IS FOLLOWING: 1) DEPENDENCE OF INFO ON MY RELEASE IS 100 PERCENT CORRECT, 100 PERCENT OF THE TIME, MATCHES FMC DATA, 2) DEPENDENCE OF MY FO, 3) STARTING A NEW TRIP WITH EARLY AM SHOW TIME AFTER MINIMUM REST AND JUST COMING OFF A PM TRIP WITH LATE SHOW TIMES. (THIS WAS A 3 DAY NIGHT TRIP BACK TO BACK TO A 2 DAY TRIP).

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.

Flight crew of an medium large transport unknowingly operated the aircraft with the wrong engine thrust performance data.