B747 operated with deferred maintenance discrepancies that were not allowed to be deferred together.

Attributes
ACN	272800
Time
Date	199405
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ord
State Reference	IL
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	B747 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
ASRS Report	272800
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : far 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:

747-standard from sfo through ord to iad. Inbound flight wrote up automatic brake inoperative, automatic spoiler inoperative, circuit breaker set no help and #3 generator tripped off line on landing operational line requirements were sent in error stating the only write-up was anti skid inoperative. Changed anti skid write-up to correct automatic brake write-up in computer. Aircraft arrived at XA15 and was dug out at XA35. I made the decision to defer these items if legal per MEL due to turn around time and the fact I was the only gate mechanic working the trip. I misread the MEL stating the automatic brake can't be deferred along with the automatic spoilers. I read it as anti skid only, not anti skid/automatic brake. I deferred automatic spoilers, did full MEL text, and check and then also deferred the automatic brake system also doing the MEL text. Aircraft departed ord to iad. Iad maintenance caught the mistake and cleared the deferred automatic spoilers inoperative by doing an operational check per maintenance manual. Aircraft departed iad legally. I have been an a&P mechanic for 27 yrs, working for air carrier Y airlines from 1967-1983, (air carrier Z airlines from jan/84-apr/84, and air carrier X from apr 84 to present, and to my knowledge this is my first offense of improper maintenance procedures. I realize that my hurrying to get an aircraft out on time violated MEL procedures.

Original NASA ASRS Text

Title: B747 OPERATED WITH DEFERRED MAINT DISCREPANCIES THAT WERE NOT ALLOWED TO BE DEFERRED TOGETHER.

Narrative: 747-STD FROM SFO THROUGH ORD TO IAD. INBOUND FLT WROTE UP AUTO BRAKE INOP, AUTO SPOILER INOP, CIRCUIT BREAKER SET NO HELP AND #3 GENERATOR TRIPPED OFF LINE ON LNDG OPERATIONAL LINE REQUIREMENTS WERE SENT IN ERROR STATING THE ONLY WRITE-UP WAS ANTI SKID INOP. CHANGED ANTI SKID WRITE-UP TO CORRECT AUTO BRAKE WRITE-UP IN COMPUTER. ACFT ARRIVED AT XA15 AND WAS DUG OUT AT XA35. I MADE THE DECISION TO DEFER THESE ITEMS IF LEGAL PER MEL DUE TO TURN AROUND TIME AND THE FACT I WAS THE ONLY GATE MECH WORKING THE TRIP. I MISREAD THE MEL STATING THE AUTO BRAKE CAN'T BE DEFERRED ALONG WITH THE AUTO SPOILERS. I READ IT AS ANTI SKID ONLY, NOT ANTI SKID/AUTO BRAKE. I DEFERRED AUTO SPOILERS, DID FULL MEL TEXT, AND CHK AND THEN ALSO DEFERRED THE AUTO BRAKE SYS ALSO DOING THE MEL TEXT. ACFT DEPARTED ORD TO IAD. IAD MAINT CAUGHT THE MISTAKE AND CLRED THE DEFERRED AUTO SPOILERS INOP BY DOING AN OPERATIONAL CHK PER MAINT MANUAL. ACFT DEPARTED IAD LEGALLY. I HAVE BEEN AN A&P MECH FOR 27 YRS, WORKING FOR ACR Y AIRLINES FROM 1967-1983, (ACR Z AIRLINES FROM JAN/84-APR/84, AND ACR X FROM APR 84 TO PRESENT, AND TO MY KNOWLEDGE THIS IS MY FIRST OFFENSE OF IMPROPER MAINT PROCS. I REALIZE THAT MY HURRYING TO GET AN ACFT OUT ON TIME VIOLATED MEL PROCS.

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.