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A B737-300 captain reports cabin floor at rows 3 and 4 spongy and deformed. Previous interim repair made with incorrect material. Removed from service.
| Attributes | |
| ACN | 696671 |
| Time | |
| Date | 200605 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : dca.airport |
| State Reference | DC |
| 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 : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 100 flight time total : 10000 flight time type : 5000 |
| ASRS Report | 696671 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Independent Detector | other flight crewa |
| Resolutory Action | other |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : repair |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Chart Or Publication Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Upon arrival in dca; I went back to inspect aft lavatory regarding a maintenance write-up. Walking back to the front of the aircraft; I noticed the floor very soft and springy near rows 3 and 4 in the aisle. Maintenance was called out. Upon inspection; it was determined a previous repair had been made. The mechanic on hand determined that the previous repair was made with inferior material and did not adequately support the floor. It was his opinion that the floor had a crack in the fiberglas. He told me the metal used was aluminum and was not an appropriate thickness. I am concerned that I unknowingly flew an aircraft in an unsafe condition. The subsequent flight was canceled and the aircraft taken for repairs. Callback conversation with reporter revealed the following information: the reporter stated the interim repair was improper as the metal used was too thin and buckled. The airplane was removed from service for a permanent fix.
Original NASA ASRS Text
Title: A B737-300 CAPT RPTS CABIN FLOOR AT ROWS 3 AND 4 SPONGY AND DEFORMED. PREVIOUS INTERIM REPAIR MADE WITH INCORRECT MATERIAL. REMOVED FROM SVC.
Narrative: UPON ARR IN DCA; I WENT BACK TO INSPECT AFT LAVATORY REGARDING A MAINT WRITE-UP. WALKING BACK TO THE FRONT OF THE ACFT; I NOTICED THE FLOOR VERY SOFT AND SPRINGY NEAR ROWS 3 AND 4 IN THE AISLE. MAINT WAS CALLED OUT. UPON INSPECTION; IT WAS DETERMINED A PREVIOUS REPAIR HAD BEEN MADE. THE MECH ON HAND DETERMINED THAT THE PREVIOUS REPAIR WAS MADE WITH INFERIOR MATERIAL AND DID NOT ADEQUATELY SUPPORT THE FLOOR. IT WAS HIS OPINION THAT THE FLOOR HAD A CRACK IN THE FIBERGLAS. HE TOLD ME THE METAL USED WAS ALUMINUM AND WAS NOT AN APPROPRIATE THICKNESS. I AM CONCERNED THAT I UNKNOWINGLY FLEW AN ACFT IN AN UNSAFE CONDITION. THE SUBSEQUENT FLT WAS CANCELED AND THE ACFT TAKEN FOR REPAIRS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE INTERIM REPAIR WAS IMPROPER AS THE METAL USED WAS TOO THIN AND BUCKLED. THE AIRPLANE WAS REMOVED FROM SVC FOR A PERMANENT FIX.
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.