<< >> NASA ASRS Report 576596, March 2003

A B737-300 was dispatched in non compliance in autoland status with no recertification check accomplished after a critical unit was replaced.

Attributes
ACN	576596
Time
Date	200303
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : powerplant technician : airframe
ASRS Report	576596
Person 2
Affiliation	company : air carrier
Function	other personnel other
Events
Anomaly	aircraft equipment problem : less severe maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure
Independent Detector	other other : person 1
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : logbook entry performance deficiency : non compliance with legal requirements performance deficiency : testing
Supplementary
Problem Areas	Aircraft Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

Aircraft arrived at approximately XA00 pm. The first officer's navigation control panel frequency selector would not present all digits in the manual window. I replaced the panel and did an operation check. I then signed off the item in the logbook. When I returned to the maintenance ready room 5 mins later, I realized that a CAT 3, a recertification with log entry was required. I immediately called the gate jetway phone, but it was busy and I could not get through. I then called operations to call the aircraft. I wanted them to hold the aircraft at the gate. I then set out to catch the aircraft before it was gone. However, I arrived too late. The plane had already taken off. I went back to the maintenance room. I called our maintenance control office to report the error and make sure the plane would be recertified as soon as possible.

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Original NASA ASRS Text

Title: A B737-300 WAS DISPATCHED IN NON COMPLIANCE IN AUTOLAND STATUS WITH NO RECERTIFICATION CHK ACCOMPLISHED AFTER A CRITICAL UNIT WAS REPLACED.

Narrative: ACFT ARRIVED AT APPROX XA00 PM. THE FO'S NAV CTL PANEL FREQ SELECTOR WOULD NOT PRESENT ALL DIGITS IN THE MANUAL WINDOW. I REPLACED THE PANEL AND DID AN OP CHK. I THEN SIGNED OFF THE ITEM IN THE LOGBOOK. WHEN I RETURNED TO THE MAINT READY ROOM 5 MINS LATER, I REALIZED THAT A CAT 3, A RECERTIFICATION WITH LOG ENTRY WAS REQUIRED. I IMMEDIATELY CALLED THE GATE JETWAY PHONE, BUT IT WAS BUSY AND I COULD NOT GET THROUGH. I THEN CALLED OPS TO CALL THE ACFT. I WANTED THEM TO HOLD THE ACFT AT THE GATE. I THEN SET OUT TO CATCH THE ACFT BEFORE IT WAS GONE. HOWEVER, I ARRIVED TOO LATE. THE PLANE HAD ALREADY TAKEN OFF. I WENT BACK TO THE MAINT ROOM. I CALLED OUR MAINT CTL OFFICE TO RPT THE ERROR AND MAKE SURE THE PLANE WOULD BE RECERTIFIED AS SOON AS POSSIBLE.

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.