 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B737-300 during replacement of the #1 IRU; the pitot and static lines on the #2 air data computer were disconnected. Dispatched with lines disconnected.
| Attributes | |
| ACN | 665059 |
| Time | |
| Date | 200507 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| 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 : airframe technician : powerplant |
| ASRS Report | 665059 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 665060 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : fo alt a/s indications other flight crewa other flight crewb |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | performance deficiency : non compliance with legal requirements performance deficiency : logbook entry performance deficiency : installation performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
On the afternoon of jul/sat/05; I was sent by my lead to assist at gate. I removed and replaced the #1 IRU. To allow room to remove and replace the IRU; I disconnected the flex ines from the #2 air data computer and failed to reconnect them. This was 100% my fault; and I accept full responsibility for this. The aircraft departed ZZZ in this condition; and I remembered not re-attaching the lines when I learned the crew had reported air data problems.
Original NASA ASRS Text
Title: A B737-300 DURING REPLACEMENT OF THE #1 IRU; THE PITOT AND STATIC LINES ON THE #2 AIR DATA COMPUTER WERE DISCONNECTED. DISPATCHED WITH LINES DISCONNECTED.
Narrative: ON THE AFTERNOON OF JUL/SAT/05; I WAS SENT BY MY LEAD TO ASSIST AT GATE. I REMOVED AND REPLACED THE #1 IRU. TO ALLOW ROOM TO REMOVE AND REPLACE THE IRU; I DISCONNECTED THE FLEX INES FROM THE #2 ADC AND FAILED TO RECONNECT THEM. THIS WAS 100% MY FAULT; AND I ACCEPT FULL RESPONSIBILITY FOR THIS. THE ACFT DEPARTED ZZZ IN THIS CONDITION; AND I REMEMBERED NOT RE-ATTACHING THE LINES WHEN I LEARNED THE CREW HAD RPTED AIR DATA PROBS.
Data retrieved from NASA's ASRS site as of January 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.