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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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The captain reports he inadvertently instructed the first officer to commence descent for the visual approach before actually receiving the clearance.
| Attributes | |
| ACN | 293270 |
| Time | |
| Date | 199501 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : sea |
| State Reference | WA |
| Altitude | msl bound lower : 7000 msl bound upper : 7000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : sea |
| Operator | common carrier : air carrier |
| Make Model Name | B737-500 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach descent other |
| Route In Use | approach : visual |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time total : 7500 |
| ASRS Report | 293270 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were on a flight from lax to sea. The WX was clear and we were landing on runway 34. Talking to approach control about 25-30 mi from sea-tac at 7000 ft, we had been told to expect a visual and to report the airport 'in sight.' after a min or so we spotted the airport and called it in sight. However, forgetting we had not yet received clearance for the visual, I rolled the altitude alert away from 7000 ft and told the copilot to start the visual. After descending about 300 ft the controller cleared us for the visual. We started out of 7000 ft prior to receiving clearance to vacate that altitude or clearance for the visual.
Original NASA ASRS Text
Title: THE CAPT RPTS HE INADVERTENTLY INSTRUCTED THE FO TO COMMENCE DSCNT FOR THE VISUAL APCH BEFORE ACTUALLY RECEIVING THE CLRNC.
Narrative: WE WERE ON A FLT FROM LAX TO SEA. THE WX WAS CLR AND WE WERE LNDG ON RWY 34. TALKING TO APCH CTL ABOUT 25-30 MI FROM SEA-TAC AT 7000 FT, WE HAD BEEN TOLD TO EXPECT A VISUAL AND TO RPT THE ARPT 'IN SIGHT.' AFTER A MIN OR SO WE SPOTTED THE ARPT AND CALLED IT IN SIGHT. HOWEVER, FORGETTING WE HAD NOT YET RECEIVED CLRNC FOR THE VISUAL, I ROLLED THE ALT ALERT AWAY FROM 7000 FT AND TOLD THE COPLT TO START THE VISUAL. AFTER DSNDING ABOUT 300 FT THE CTLR CLRED US FOR THE VISUAL. WE STARTED OUT OF 7000 FT PRIOR TO RECEIVING CLRNC TO VACATE THAT ALT OR CLRNC FOR THE VISUAL.
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.