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Missed approach made off IAP ILS approach in a night operation when localizer needles go full scale deflection at 1200 ft.
| Attributes | |
| ACN | 237569 |
| Time | |
| Date | 199303 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : pvd |
| State Reference | RI |
| Altitude | msl bound lower : 1200 msl bound upper : 1200 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : pvd artcc : zob |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | ils localizer & glide slope : pvd |
| Flight Phase | descent : approach landing : missed approach |
| Route In Use | approach : straight in |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 250 flight time total : 12500 flight time type : 3500 |
| ASRS Report | 237569 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : published procedure other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
Pvd approach cleared us for ILS 5R at pvd. Intercepted localizer just at final approach fix and began descent to decision ht. NDB bearing showed approximately localizer course. Both localizer CDI needles went full scale deflection while NDB course showed still on track. Commenced missed approach at approximately 1200 ft MSL. Notified tower of go around. Re-vectored for ILS 5R approach and landing were normal. An aircraft had been cleared for takeoff prior to our first landing attempt. This could have disrupted localizer indications.
Original NASA ASRS Text
Title: MISSED APCH MADE OFF IAP ILS APCH IN A NIGHT OP WHEN LOC NEEDLES GO FULL SCALE DEFLECTION AT 1200 FT.
Narrative: PVD APCH CLRED US FOR ILS 5R AT PVD. INTERCEPTED LOC JUST AT FINAL APCH FIX AND BEGAN DSCNT TO DECISION HT. NDB BEARING SHOWED APPROX LOC COURSE. BOTH LOC CDI NEEDLES WENT FULL SCALE DEFLECTION WHILE NDB COURSE SHOWED STILL ON TRACK. COMMENCED MISSED APCH AT APPROX 1200 FT MSL. NOTIFIED TWR OF GAR. RE-VECTORED FOR ILS 5R APCH AND LNDG WERE NORMAL. AN ACFT HAD BEEN CLRED FOR TKOF PRIOR TO OUR FIRST LNDG ATTEMPT. THIS COULD HAVE DISRUPTED LOC INDICATIONS.
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.