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A B737-300 in climb at FL283 noted cabin rate of climb at 1000 FPM. Made rapid descent per procedures. Return to field. Found east&east compartment door seal failed.
| Attributes | |
| ACN | 645025 |
| Time | |
| Date | 200501 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 28300 |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzz.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Flight Phase | climbout : intermediate altitude |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 300 flight time total : 15000 flight time type : 6000 |
| ASRS Report | 645025 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical cabin event other |
| Independent Detector | aircraft equipment other aircraft equipment : cabin rate of climb ind other flight crewa other flight crewb |
| Resolutory Action | flight crew : overcame equipment problem flight crew : landed as precaution flight crew : diverted to another airport other |
| Consequence | other other other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft Cabin Crew Human Performance Chart Or Publication |
| Primary Problem | Aircraft |
Narrative:
All normal SOP's. Clear. Cleared to FL320; climbing through FL180; noted 750 FPM rate of climb. Bit higher than normal; but very light so decided ok. At FL283; noted a rate of climb better than 1000 FPM and a cabin altitude of 8000 ft. Asked center to level. Did at FL290. First officer put airplane on autoplt 'B.' went to standby. No help. Cabin altitude at 10000 ft. Did rapid depressurization qrc. Asked for lower; advised needed to return to ZZZ. Did emergency descent qrc. Regained cabin control at about FL180. Returned to ZZZ; landed. Flight attendant complained of ear hurting. Nothing else noted. No masks dropped. Dispatch notified in air of intention and problem. Talked to mechanics on ground. They found an east&east seal failed. They did pressurize aircraft past 2000 ft. Notified dispatch once on ground of particulars and advised that we were writing reports.
Original NASA ASRS Text
Title: A B737-300 IN CLB AT FL283 NOTED CABIN RATE OF CLB AT 1000 FPM. MADE RAPID DSCNT PER PROCS. RETURN TO FIELD. FOUND E&E COMPARTMENT DOOR SEAL FAILED.
Narrative: ALL NORMAL SOP'S. CLR. CLRED TO FL320; CLBING THROUGH FL180; NOTED 750 FPM RATE OF CLB. BIT HIGHER THAN NORMAL; BUT VERY LIGHT SO DECIDED OK. AT FL283; NOTED A RATE OF CLB BETTER THAN 1000 FPM AND A CABIN ALT OF 8000 FT. ASKED CTR TO LEVEL. DID AT FL290. FO PUT AIRPLANE ON AUTOPLT 'B.' WENT TO STANDBY. NO HELP. CABIN ALT AT 10000 FT. DID RAPID DEPRESSURIZATION QRC. ASKED FOR LOWER; ADVISED NEEDED TO RETURN TO ZZZ. DID EMER DSCNT QRC. REGAINED CABIN CTL AT ABOUT FL180. RETURNED TO ZZZ; LANDED. FLT ATTENDANT COMPLAINED OF EAR HURTING. NOTHING ELSE NOTED. NO MASKS DROPPED. DISPATCH NOTIFIED IN AIR OF INTENTION AND PROB. TALKED TO MECHS ON GND. THEY FOUND AN E&E SEAL FAILED. THEY DID PRESSURIZE ACFT PAST 2000 FT. NOTIFIED DISPATCH ONCE ON GND OF PARTICULARS AND ADVISED THAT WE WERE WRITING RPTS.
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.