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A B747-200F captain reports multiple flight control reports traced to a panel repeatedly being kicked loose in the crew rest bunk area.
| Attributes | |
| ACN | 608657 |
| Time | |
| Date | 200301 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B747-C/F |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : multi engine |
| Experience | flight time last 90 days : 180 flight time total : 20000 flight time type : 5000 |
| ASRS Report | 608657 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Independent Detector | other flight crewa other flight crewb other other : 3 |
| Resolutory Action | flight crew : overcame equipment problem |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : repair performance deficiency : fault isolation |
| Supplementary | |
| Problem Areas | Maintenance Human Performance FAA Company Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
While performing his pre flight duties, the first officer discovered a loose panel on the bulkhead aft of the lower left bunk (captain's side of aircraft). The panel appears to be an access door that is held in place with a system of snap-type fasteners. The first officer discovered that the panel had been removed or bumped from it's position and fell out of the upper deck area onto control cables located aft and below the crew rest area. The panel showed damage that seems consistent with being jammed in the control cables. They reinstalled the panel and found no defects in the control cables. However, the aircraft has recent multiple write-ups for flight control problems which could be traced to this panel repeatedly being knocked loose. I recommend that the panel be immediately redesigned and that the fleet be inspected for similar doors and then refitted as needed. Callback conversation with reporter revealed the following information: the reporter stated recent flight control problems can be traced directly to the panel interfering with the flight controls by dropping from the upper deck onto the control cables located aft and below the crew rest area. The reporter said the panel is large being 24
Original NASA ASRS Text
Title: A B747-200F CAPT RPTS MULTIPLE FLT CTL RPTS TRACED TO A PANEL REPEATEDLY BEING KICKED LOOSE IN THE CREW REST BUNK AREA.
Narrative: WHILE PERFORMING HIS PRE FLT DUTIES, THE FO DISCOVERED A LOOSE PANEL ON THE BULKHEAD AFT OF THE LOWER LEFT BUNK (CAPT'S SIDE OF ACFT). THE PANEL APPEARS TO BE AN ACCESS DOOR THAT IS HELD IN PLACE WITH A SYSTEM OF SNAP-TYPE FASTENERS. THE FO DISCOVERED THAT THE PANEL HAD BEEN REMOVED OR BUMPED FROM IT'S POSITION AND FELL OUT OF THE UPPER DECK AREA ONTO CONTROL CABLES LOCATED AFT AND BELOW THE CREW REST AREA. THE PANEL SHOWED DAMAGE THAT SEEMS CONSISTENT WITH BEING JAMMED IN THE CONTROL CABLES. THEY REINSTALLED THE PANEL AND FOUND NO DEFECTS IN THE CONTROL CABLES. HOWEVER, THE ACFT HAS RECENT MULTIPLE WRITE-UPS FOR FLT CONTROL PROBS WHICH COULD BE TRACED TO THIS PANEL REPEATEDLY BEING KNOCKED LOOSE. I RECOMMEND THAT THE PANEL BE IMMEDIATELY REDESIGNED AND THAT THE FLEET BE INSPECTED FOR SIMILAR DOORS AND THEN REFITTED AS NEEDED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED RECENT FLT CTL PROBS CAN BE TRACED DIRECTLY TO THE PANEL INTERFERING WITH THE FLT CTLS BY DROPPING FROM THE UPPER DECK ONTO THE CTL CABLES LOCATED AFT AND BELOW THE CREW REST AREA. THE RPTR SAID THE PANEL IS LARGE BEING 24
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.