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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Near midair collision. A C172 cuts off a C177 on final approach to cdc, ut, missing it by 25 ft horizontal. The C172's radio was inoperative, unknown to the crew.
| Attributes | |
| ACN | 419241 |
| Time | |
| Date | 199811 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : cdc airport : cdc |
| State Reference | UT |
| Altitude | msl bound lower : 6700 msl bound upper : 6700 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach landing other |
| Aircraft 2 | |
| Make Model Name | Cardinal 177/177RG |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach landing : go around |
| Route In Use | approach : straight in |
| Person 1 | |
| Affiliation | Other |
| Function | instruction : instructor oversight : pic |
| Qualification | pilot : instrument pilot : commercial pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 8600 flight time type : 300 |
| ASRS Report | 419241 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot instruction : trainee |
| Qualification | pilot : student |
| Events | |
| Anomaly | aircraft equipment problem : less severe conflict : nmac non adherence : far non adherence : published procedure other anomaly other other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action other |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 25 |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Apparently our radio was not transmitting or receiving as we were doing pattern work. We were unaware of conflicting traffic until 2 days after the near miss report was filed with the FAA. We were flying a close-in right traffic pattern runway 20 and the other involved aircraft was doing a practice ILS in VMC. Their report stated that our aircraft cut them off at the last second before landing. I remember looking to clear the base to final turn both before and during the turn. We saw no other aircraft in the area. Since the radio may not have been working at the time, we did not hear any xmissions. I don't believe the other aircraft report of being within 25 ft was accurate, as we did not see or hear them at all. I believe that if we had had an operable radio that this incident would not have occurred. We have grounded the aircraft until the radio is repaired.
Original NASA ASRS Text
Title: NMAC. A C172 CUTS OFF A C177 ON FINAL APCH TO CDC, UT, MISSING IT BY 25 FT HORIZ. THE C172'S RADIO WAS INOP, UNKNOWN TO THE CREW.
Narrative: APPARENTLY OUR RADIO WAS NOT XMITTING OR RECEIVING AS WE WERE DOING PATTERN WORK. WE WERE UNAWARE OF CONFLICTING TFC UNTIL 2 DAYS AFTER THE NEAR MISS RPT WAS FILED WITH THE FAA. WE WERE FLYING A CLOSE-IN R TFC PATTERN RWY 20 AND THE OTHER INVOLVED ACFT WAS DOING A PRACTICE ILS IN VMC. THEIR RPT STATED THAT OUR ACFT CUT THEM OFF AT THE LAST SECOND BEFORE LNDG. I REMEMBER LOOKING TO CLR THE BASE TO FINAL TURN BOTH BEFORE AND DURING THE TURN. WE SAW NO OTHER ACFT IN THE AREA. SINCE THE RADIO MAY NOT HAVE BEEN WORKING AT THE TIME, WE DID NOT HEAR ANY XMISSIONS. I DON'T BELIEVE THE OTHER ACFT RPT OF BEING WITHIN 25 FT WAS ACCURATE, AS WE DID NOT SEE OR HEAR THEM AT ALL. I BELIEVE THAT IF WE HAD HAD AN OPERABLE RADIO THAT THIS INCIDENT WOULD NOT HAVE OCCURRED. WE HAVE GNDED THE ACFT UNTIL THE RADIO IS REPAIRED.
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.