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Flight crew of light transport commuter air carrier on approach into sea fails to abide by ATC instruction to maintain 3200' until anvil intersection while on the runway 16R ILS approach.
| Attributes | |
| ACN | 139995 |
| Time | |
| Date | 199003 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : sea |
| State Reference | WA |
| Altitude | msl bound lower : 2300 msl bound upper : 3200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sea |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Navigation In Use | ils localizer & glide slope : iszi |
| Flight Phase | descent : approach |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 160 flight time total : 3200 |
| ASRS Report | 139995 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 160 flight time total : 3700 |
| ASRS Report | 140221 |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
In the approach phase of our flight, we were on vector heading of 190 degrees. We were cleared down to 3200' to intercept the localizer 158 degree, cross anvil at 3200', cleared for the approach, contact tower at park. I read back the clearance the same except I said, 'intercept localizer at 3200', cleared for approach.' there was no correction or response from approach. After intercepting the localizer we began to descend, to cross anvil at published minimum of 2000'. At about 2300' approach told us to 'say altitude.' we did and were not pleasantly surprised when told that we were supposed to cross anvil at 3200' because of conflicting traffic inbound to bfi. Approach cancelled our approach clearance, gave us a vector heading 130 degrees and to maintain 2100' back for resequence. The flight after that went west/O incident and nothing else was said from approach or tower.
Original NASA ASRS Text
Title: FLT CREW OF LTT COMMUTER ACR ON APCH INTO SEA FAILS TO ABIDE BY ATC INSTRUCTION TO MAINTAIN 3200' UNTIL ANVIL INTXN WHILE ON THE RWY 16R ILS APCH.
Narrative: IN THE APCH PHASE OF OUR FLT, WE WERE ON VECTOR HDG OF 190 DEGS. WE WERE CLRED DOWN TO 3200' TO INTERCEPT THE LOC 158 DEG, CROSS ANVIL AT 3200', CLRED FOR THE APCH, CONTACT TWR AT PARK. I READ BACK THE CLRNC THE SAME EXCEPT I SAID, 'INTERCEPT LOC AT 3200', CLRED FOR APCH.' THERE WAS NO CORRECTION OR RESPONSE FROM APCH. AFTER INTERCEPTING THE LOC WE BEGAN TO DSND, TO CROSS ANVIL AT PUBLISHED MINIMUM OF 2000'. AT ABOUT 2300' APCH TOLD US TO 'SAY ALT.' WE DID AND WERE NOT PLEASANTLY SURPRISED WHEN TOLD THAT WE WERE SUPPOSED TO CROSS ANVIL AT 3200' BECAUSE OF CONFLICTING TFC INBND TO BFI. APCH CANCELLED OUR APCH CLRNC, GAVE US A VECTOR HDG 130 DEGS AND TO MAINTAIN 2100' BACK FOR RESEQUENCE. THE FLT AFTER THAT WENT W/O INCIDENT AND NOTHING ELSE WAS SAID FROM APCH OR TWR.
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.