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A B737-700 captain reported that a new company manual is confusing with regard to a 'walkaround' requirement when an aircraft returns to the gate.
| Attributes | |
| ACN | 518520 |
| Time | |
| Date | 200107 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : sea.airport |
| State Reference | WA |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : ilg.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737-700 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 12000 flight time type : 1000 |
| ASRS Report | 518520 |
| Events | |
| Anomaly | maintenance problem : improper documentation non adherence : published procedure non adherence : company policies non adherence : far |
| Resolutory Action | none taken : detected after the fact |
| Supplementary | |
| Problem Areas | Company Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
Returned to gate after pushback, due to mechanical problem. After repair, pushed back and continued flight sequence. After arrival at destination, maintenance said that maintenance preflight 'walkaround check' had not been signed off for 2ND pushback. After researching, I found that the new electronic 'general procedures manual' requires that a walkaround check must be performed for all 'scheduled arrs' at a maintenance station. Much confusion exists on requirements of our new manual. Human factors with new manual could allow aircraft to depart without proper inspection, even though this incident does not fit the criteria. (No signoff required.) I believe inadequate training on the new manual causes confusion on the line.
Original NASA ASRS Text
Title: A B737-700 CAPT RPTED THAT A NEW COMPANY MANUAL IS CONFUSING WITH REGARD TO A 'WALKAROUND' REQUIREMENT WHEN AN ACFT RETURNS TO THE GATE.
Narrative: RETURNED TO GATE AFTER PUSHBACK, DUE TO MECHANICAL PROB. AFTER REPAIR, PUSHED BACK AND CONTINUED FLT SEQUENCE. AFTER ARR AT DEST, MAINT SAID THAT MAINT PREFLT 'WALKAROUND CHK' HAD NOT BEEN SIGNED OFF FOR 2ND PUSHBACK. AFTER RESEARCHING, I FOUND THAT THE NEW ELECTRONIC 'GENERAL PROCS MANUAL' REQUIRES THAT A WALKAROUND CHK MUST BE PERFORMED FOR ALL 'SCHEDULED ARRS' AT A MAINT STATION. MUCH CONFUSION EXISTS ON REQUIREMENTS OF OUR NEW MANUAL. HUMAN FACTORS WITH NEW MANUAL COULD ALLOW ACFT TO DEPART WITHOUT PROPER INSPECTION, EVEN THOUGH THIS INCIDENT DOES NOT FIT THE CRITERIA. (NO SIGNOFF REQUIRED.) I BELIEVE INADEQUATE TRAINING ON THE NEW MANUAL CAUSES CONFUSION ON THE LINE.
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.