A line mechanic reports on changing a mid cabin temperature selector panel per his company's mainten...

Attributes
ACN	777188
Time
Date	200803
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
ASRS Report	777188
Events
Anomaly	maintenance problem : improper documentation non adherence : published procedure other anomaly other
Independent Detector	other other : 1
Resolutory Action	none taken : detected after the fact
Consequence	other
Factors
Maintenance	contributing factor : engineering procedure contributing factor : schedule pressure contributing factor : briefing performance deficiency : repair performance deficiency : installation
Supplementary
Problem Areas	Maintenance Human Performance Aircraft Company
Primary Problem	Company

Narrative:

I came on board to work a cabin chime problem and the gate mechanic asked me to finish installing a mid cabin temperature selector per a line maintenance callout. I installed the selector as per the callout. After replacing; the inoperative light stayed on in both the automatic and manual modes. The auxiliary temperature controller showed a mid auxiliary selector fault when the bite check was accomplished. We ran out of time and decided to defer the problem. Both the mid cabin and auxiliary mid cabin trim air valves failed to move from closed position. I received a call from the line maintenance controller asking for the removed part number. It was xyz and he said that number corresponded to part number abc. The original part number called out for was cde. The number in the callout was incorrect and I installed it in the aircraft. A new callout was generated to replace the unit again.

Original NASA ASRS Text

Title: A LINE MECHANIC REPORTS ON CHANGING A MID CABIN TEMP SELECTOR PANEL PER HIS COMPANY'S MAINT CALLOUT PROCEDURES FOR A B767-300 ACFT. HE IS INFORMED LATER THE PART AND PART # IN THE PROCEDURE WAS INCORRECT.

Narrative: I CAME ON BOARD TO WORK A CABIN CHIME PROB AND THE GATE MECH ASKED ME TO FINISH INSTALLING A MID CABIN TEMP SELECTOR PER A LINE MAINT CALLOUT. I INSTALLED THE SELECTOR AS PER THE CALLOUT. AFTER REPLACING; THE INOP LIGHT STAYED ON IN BOTH THE AUTO AND MANUAL MODES. THE AUX TEMP CONTROLLER SHOWED A MID AUX SELECTOR FAULT WHEN THE BITE CHK WAS ACCOMPLISHED. WE RAN OUT OF TIME AND DECIDED TO DEFER THE PROB. BOTH THE MID CABIN AND AUX MID CABIN TRIM AIR VALVES FAILED TO MOVE FROM CLOSED POS. I RECEIVED A CALL FROM THE LINE MAINT CTLR ASKING FOR THE REMOVED PART NUMBER. IT WAS XYZ AND HE SAID THAT NUMBER CORRESPONDED TO PART NUMBER ABC. THE ORIGINAL PART NUMBER CALLED OUT FOR WAS CDE. THE NUMBER IN THE CALLOUT WAS INCORRECT AND I INSTALLED IT IN THE ACFT. A NEW CALLOUT WAS GENERATED TO REPLACE THE UNIT AGAIN.

Data retrieved from NASA's ASRS site as of May 2009 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.

A line mechanic reports on changing a mid cabin temperature selector panel per his company's maintenance callout procedures for a B767-300 aircraft. He is informed later the part and part # in the procedure was incorrect.