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Air carrier requested vectors to adjust pressurization to sea level during approach. Controller thought emergency.
| Attributes | |
| ACN | 225614 |
| Time | |
| Date | 199211 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : bos |
| State Reference | MA |
| Altitude | msl bound lower : 5000 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : bos |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 300 flight time total : 10000 flight time type : 300 |
| ASRS Report | 225614 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
Descent in bos from FL330 was rapid due to ATC clearance and no traffic ahead. Cabin pressurization was not at sea level when clearance for a visual approach was given. We requested additional vectoring to allow pressurization to get to sea level. Bos approach apparently thought emergency condition existed. Scrambled fire trucks, notified company. Flight attendant notified us of ear problems which precipitated vectoring. We should have monitored pressurization closer on descent to ensure sea level.
Original NASA ASRS Text
Title: ACR REQUESTED VECTORS TO ADJUST PRESSURIZATION TO SEA LEVEL DURING APCH. CTLR THOUGHT EMER.
Narrative: DSCNT IN BOS FROM FL330 WAS RAPID DUE TO ATC CLRNC AND NO TFC AHEAD. CABIN PRESSURIZATION WAS NOT AT SEA LEVEL WHEN CLRNC FOR A VISUAL APCH WAS GIVEN. WE REQUESTED ADDITIONAL VECTORING TO ALLOW PRESSURIZATION TO GET TO SEA LEVEL. BOS APCH APPARENTLY THOUGHT EMER CONDITION EXISTED. SCRAMBLED FIRE TRUCKS, NOTIFIED COMPANY. FLT ATTENDANT NOTIFIED US OF EAR PROBLEMS WHICH PRECIPITATED VECTORING. WE SHOULD HAVE MONITORED PRESSURIZATION CLOSER ON DSCNT TO ENSURE SEA LEVEL.
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.