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Altitude deviation altitude crossing restr not met over LOM on IAP ILS approach. Reporter followed a false GS.
| Attributes | |
| ACN | 309141 |
| Time | |
| Date | 199507 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : cvg |
| State Reference | OH |
| Altitude | msl bound lower : 1800 msl bound upper : 2100 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : cvg tower : sdf |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : isic |
| Flight Phase | descent : approach descent other |
| Route In Use | approach : straight in |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 20000 flight time type : 2000 |
| ASRS Report | 309141 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met altitude deviation : overshoot non adherence : clearance non adherence : published procedure other anomaly other other spatial deviation |
| Independent Detector | atc equipment other atc equipment : unspecified aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | flight crew : became reoriented other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | other physical facility |
| Navigational Aid | Unspecified |
Narrative:
When cleared for an ILS approach we asked tower if GS was operational, they replied yes. Both cockpit navigation displays showed valid signal but when we followed GS we went below LOM altitude by 300 ft and tower gave us an MSAW warning. We executed GS out approach.
Original NASA ASRS Text
Title: ALTDEV ALT XING RESTR NOT MET OVER LOM ON IAP ILS APCH. RPTR FOLLOWED A FALSE GS.
Narrative: WHEN CLRED FOR AN ILS APCH WE ASKED TWR IF GS WAS OPERATIONAL, THEY REPLIED YES. BOTH COCKPIT NAV DISPLAYS SHOWED VALID SIGNAL BUT WHEN WE FOLLOWED GS WE WENT BELOW LOM ALT BY 300 FT AND TWR GAVE US AN MSAW WARNING. WE EXECUTED GS OUT APCH.
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.