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An MD80 climbing through FL270 declared an emergency and returned to the departure airport due to a loud bang heard and loss of cabin pressure.
| Attributes | |
| ACN | 682543 |
| Time | |
| Date | 200512 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 27000 |
| Environment | |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzz.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : vacating altitude climbout : intermediate altitude cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 265 |
| ASRS Report | 682543 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : critical ground encounters : vehicle non adherence : published procedure non adherence : far |
| Independent Detector | aircraft equipment other aircraft equipment : cabin alt warning light other flight crewa other flight crewb |
| Resolutory Action | other |
| Consequence | other other other |
| Supplementary | |
| Problem Areas | Environmental Factor Aircraft Company |
| Primary Problem | Company |
Narrative:
Upon departure and climbing through FL270; we (the crew) heard a bang and noticed the flow light; followed by cabin altitude warning light. We started an immediate descent; declared an emergency and requested a return to ZZZ for landing. We ran the emergency checklist and landed in ZZZ with no other complications. Upon landing in ZZZ; the maintenance personnel met the airplane and informed us of a hole in the side of the airplane next to the pit one door which caused the depressurization. The aircraft arrived late to the gate for our flight to ZZZ1; which allowed me to meet the aircraft outside on the ground before it pulled in to the gate. On my walkaround there were no irregularities on the aircraft. Ground personnel need to notify the crew immediately if they believe to have damaged the aircraft. Callback conversation with reporter revealed the following information: the reporter had no further details on the loss of pressurization other than the aircraft warning and emergency system operated normally; including the passenger emergency oxygen masks.
Original NASA ASRS Text
Title: AN MD80 CLBING THROUGH FL270 DECLARED AN EMER AND RETURNED TO THE DEP ARPT DUE TO A LOUD BANG HEARD AND LOSS OF CABIN PRESSURE.
Narrative: UPON DEP AND CLBING THROUGH FL270; WE (THE CREW) HEARD A BANG AND NOTICED THE FLOW LIGHT; FOLLOWED BY CABIN ALT WARNING LIGHT. WE STARTED AN IMMEDIATE DSCNT; DECLARED AN EMER AND REQUESTED A RETURN TO ZZZ FOR LNDG. WE RAN THE EMER CHKLIST AND LANDED IN ZZZ WITH NO OTHER COMPLICATIONS. UPON LNDG IN ZZZ; THE MAINT PERSONNEL MET THE AIRPLANE AND INFORMED US OF A HOLE IN THE SIDE OF THE AIRPLANE NEXT TO THE PIT ONE DOOR WHICH CAUSED THE DEPRESSURIZATION. THE ACFT ARRIVED LATE TO THE GATE FOR OUR FLT TO ZZZ1; WHICH ALLOWED ME TO MEET THE ACFT OUTSIDE ON THE GND BEFORE IT PULLED IN TO THE GATE. ON MY WALKAROUND THERE WERE NO IRREGULARITIES ON THE ACFT. GND PERSONNEL NEED TO NOTIFY THE CREW IMMEDIATELY IF THEY BELIEVE TO HAVE DAMAGED THE ACFT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR HAD NO FURTHER DETAILS ON THE LOSS OF PRESSURIZATION OTHER THAN THE ACFT WARNING AND EMER SYS OPERATED NORMALLY; INCLUDING THE PAX EMER OXYGEN MASKS.
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.