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Widebody transport crew did not observe the mandatory crossing restrs listed on the ILS runway 27 approach at iah. The crew descended on the GS instead.
| Attributes | |
| ACN | 590343 |
| Time | |
| Date | 200308 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | intersection : trann |
| State Reference | TX |
| Altitude | msl single value : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : i90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 27 other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 110 flight time total : 6000 flight time type : 350 |
| ASRS Report | 590343 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met non adherence : far non adherence : published procedure non adherence : company policies |
| Independent Detector | atc equipment other atc equipment : radar other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
En route to trann on the ILS runway 27, we were cleared for the ILS runway 27 approach. Passing trann and en route to dento (on GS) we were instructed to make mandatory altitude at dento. We were on GS and cleared for approach and 99% sure we made all mandatory altitudes on final. However, it is very, very unusual to see mandatory altitude's on final of an ILS approach. Therefore, I recommend that approach controllers warn pilots of these limitations when essential to flight safety.
Original NASA ASRS Text
Title: WDB CREW DID NOT OBSERVE THE MANDATORY XING RESTRS LISTED ON THE ILS RWY 27 APCH AT IAH. THE CREW DSNDED ON THE GS INSTEAD.
Narrative: ENRTE TO TRANN ON THE ILS RWY 27, WE WERE CLRED FOR THE ILS RWY 27 APCH. PASSING TRANN AND ENRTE TO DENTO (ON GS) WE WERE INSTRUCTED TO MAKE MANDATORY ALT AT DENTO. WE WERE ON GS AND CLRED FOR APCH AND 99% SURE WE MADE ALL MANDATORY ALTS ON FINAL. HOWEVER, IT IS VERY, VERY UNUSUAL TO SEE MANDATORY ALT'S ON FINAL OF AN ILS APCH. THEREFORE, I RECOMMEND THAT APCH CTLRS WARN PLTS OF THESE LIMITATIONS WHEN ESSENTIAL TO FLT SAFETY.
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.