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Altitude deviation altitude excursion from assigned noted by alert approach controller with min safe altitude warning alert passed on to air carrier during approach descent procedure.
| Attributes | |
| ACN | 204531 |
| Time | |
| Date | 199203 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : san |
| State Reference | CA |
| Altitude | msl bound lower : 1800 msl bound upper : 2000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : san |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : flight engineer pilot : instrument |
| Experience | flight time last 90 days : 180 flight time total : 7500 flight time type : 2500 |
| ASRS Report | 204531 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 180 flight time total : 17000 flight time type : 1500 |
| ASRS Report | 204524 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude altitude deviation : crossing restriction not met non adherence : clearance non adherence : published procedure other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On approach into san for localizer 27 approach, selected bar 27 on arrs page in FMS and runway 27 rather than localizer 27. When you select raw runway as we did rather than the correct procedure of selecting localizer 27, an imaginary FAF is established 8 NM from the runway rather than the correct fix called feebo at 5.1 NM from the runway. At 8 NM FAF we started down from 2000 MSL. At 200 low or 1800 MSL, approach control called and said we were low. We immediately recognized our mistake and climbed back to 2000 MSL and remained there until reebo intersection and then made a normal approach and landing. Solution: somehow flcs should be warned of this possibility when using FMS or glass cockpit aircraft.
Original NASA ASRS Text
Title: ALTDEV ALT EXCURSION FROM ASSIGNED NOTED BY ALERT APCH CTLR WITH MIN SAFE ALT WARNING ALERT PASSED ON TO ACR DURING APCH DSCNT PROC.
Narrative: ON APCH INTO SAN FOR LOC 27 APCH, SELECTED BAR 27 ON ARRS PAGE IN FMS AND RWY 27 RATHER THAN LOC 27. WHEN YOU SELECT RAW RWY AS WE DID RATHER THAN THE CORRECT PROC OF SELECTING LOC 27, AN IMAGINARY FAF IS ESTABLISHED 8 NM FROM THE RWY RATHER THAN THE CORRECT FIX CALLED FEEBO AT 5.1 NM FROM THE RWY. AT 8 NM FAF WE STARTED DOWN FROM 2000 MSL. AT 200 LOW OR 1800 MSL, APCH CTL CALLED AND SAID WE WERE LOW. WE IMMEDIATELY RECOGNIZED OUR MISTAKE AND CLBED BACK TO 2000 MSL AND REMAINED THERE UNTIL REEBO INTXN AND THEN MADE A NORMAL APCH AND LNDG. SOLUTION: SOMEHOW FLCS SHOULD BE WARNED OF THIS POSSIBILITY WHEN USING FMS OR GLASS COCKPIT ACFT.
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.