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Small aircraft cleared for ILS loses signal at turn-on and shifts to VOR (different track alignment) without clearance resulting in arsa penetration.
| Attributes | |
| ACN | 151312 |
| Time | |
| Date | 199007 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : efd |
| State Reference | TX |
| Altitude | msl bound lower : 2000 msl bound upper : 2000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : iah |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Retractable Gear |
| Flight Phase | descent : approach landing other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private pilot : instrument |
| Experience | flight time last 90 days : 40 flight time total : 475 flight time type : 150 |
| ASRS Report | 151312 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Vectored approach to iefd. Localizer tuned and received. Final approach vector to join given. As turning onto final approach course (ILS), signal lost. Attempted to notify approach control (120.05), no response. While setting up for VOR approach, flew through localizer near or in houston hobby approach course. Radios all check out 'ok' after landing. Houston approach gave 'receiver only' vector approach. Tower frequency transmit/receive, 'ok'.
Original NASA ASRS Text
Title: SMA CLEARED FOR ILS LOSES SIGNAL AT TURN-ON AND SHIFTS TO VOR (DIFFERENT TRACK ALIGNMENT) WITHOUT CLRNC RESULTING IN ARSA PENETRATION.
Narrative: VECTORED APCH TO IEFD. LOC TUNED AND RECEIVED. FINAL APCH VECTOR TO JOIN GIVEN. AS TURNING ONTO FINAL APCH COURSE (ILS), SIGNAL LOST. ATTEMPTED TO NOTIFY APCH CTL (120.05), NO RESPONSE. WHILE SETTING UP FOR VOR APCH, FLEW THROUGH LOC NEAR OR IN HOUSTON HOBBY APCH COURSE. RADIOS ALL CHK OUT 'OK' AFTER LNDG. HOUSTON APCH GAVE 'RECEIVER ONLY' VECTOR APCH. TWR FREQ XMIT/RECEIVE, 'OK'.
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.