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A330 airbus flight crew overshot intermediate arrival fix due to misinterp of their clearance during a medical passenger emergency.
| Attributes | |
| ACN | 545495 |
| Time | |
| Date | 200204 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : lvz.vortac |
| State Reference | PA |
| Altitude | msl bound lower : 11000 msl bound upper : 12000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | A330 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : vacating altitude |
| Route In Use | arrival star : mazie 1 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 24000 flight time type : 1200 |
| ASRS Report | 545495 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 17545 flight time type : 250 |
| ASRS Report | 545382 |
| Events | |
| Anomaly | altitude deviation : overshoot cabin event : passenger illness non adherence : clearance other anomaly other |
| Independent Detector | atc equipment other atc equipment : radar aircraft equipment other aircraft equipment : altimeter/alert other controllera |
| Resolutory Action | controller : issued alert flight crew : returned to assigned altitude |
| Supplementary | |
| Problem Areas | Passenger Human Performance ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On arrival to phl, on mazie 1 arrival, were cleared to cross D15 dny intersection at FL190. We expected to cross corle at 12000 ft. We were then given what I thought to be 10 mi north of lvz at 10000 ft. I confirmed the 10000 ft per company fom with captain and then built new one in FMC with 10000 ft restr, deleting corle at 12000 ft. At about 11000 ft, ZNY asked if we were going to level at 12000 ft. Captain replied we were descending to 10000 ft. ZNY said we were only cleared to 12000 ft. I stopped the descent and climbed back to 12000 ft. After receiving this descent clearance, we were given a short vector to the west, then cleared to lvz. Before the vector, we were flying the mazie 1 arrival and planned to cross corie at 12000 ft. The clearance given by ZNY had us crossing close to corie (2 mi) at 12000 ft which added workload and confusion. During this descent and clearance, we had a medical emergency in the cabin of the aircraft and had numerous calls from the flight attendant on the cockpit speaker which added distraction during a critical phase of flight. I believe the medical emergency distraction had a lot to do with the deviation and also the controller's changes added to the workload and confusion. Less communication with cabin crews during critical phases of flight might help prevent these sits.
Original NASA ASRS Text
Title: A330 AIRBUS FLC OVERSHOT INTERMEDIATE ARR FIX DUE TO MISINTERP OF THEIR CLRNC DURING A MEDICAL PAX EMER.
Narrative: ON ARR TO PHL, ON MAZIE 1 ARR, WERE CLRED TO CROSS D15 DNY INTXN AT FL190. WE EXPECTED TO CROSS CORLE AT 12000 FT. WE WERE THEN GIVEN WHAT I THOUGHT TO BE 10 MI N OF LVZ AT 10000 FT. I CONFIRMED THE 10000 FT PER COMPANY FOM WITH CAPT AND THEN BUILT NEW ONE IN FMC WITH 10000 FT RESTR, DELETING CORLE AT 12000 FT. AT ABOUT 11000 FT, ZNY ASKED IF WE WERE GOING TO LEVEL AT 12000 FT. CAPT REPLIED WE WERE DSNDING TO 10000 FT. ZNY SAID WE WERE ONLY CLRED TO 12000 FT. I STOPPED THE DSCNT AND CLBED BACK TO 12000 FT. AFTER RECEIVING THIS DSCNT CLRNC, WE WERE GIVEN A SHORT VECTOR TO THE W, THEN CLRED TO LVZ. BEFORE THE VECTOR, WE WERE FLYING THE MAZIE 1 ARR AND PLANNED TO CROSS CORIE AT 12000 FT. THE CLRNC GIVEN BY ZNY HAD US XING CLOSE TO CORIE (2 MI) AT 12000 FT WHICH ADDED WORKLOAD AND CONFUSION. DURING THIS DSCNT AND CLRNC, WE HAD A MEDICAL EMER IN THE CABIN OF THE ACFT AND HAD NUMEROUS CALLS FROM THE FLT ATTENDANT ON THE COCKPIT SPEAKER WHICH ADDED DISTR DURING A CRITICAL PHASE OF FLT. I BELIEVE THE MEDICAL EMER DISTR HAD A LOT TO DO WITH THE DEV AND ALSO THE CTLR'S CHANGES ADDED TO THE WORKLOAD AND CONFUSION. LESS COM WITH CABIN CREWS DURING CRITICAL PHASES OF FLT MIGHT HELP PREVENT THESE SITS.
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.