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A descending C421 is almost hit by a C172 who had turned at the last moment to prevent a midair collision. C421 under radar control, IFR flight plan, by pbi approach control.
| Attributes | |
| ACN | 416236 |
| Time | |
| Date | 199810 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : blt airport : blt |
| State Reference | FL |
| Altitude | msl bound lower : 3000 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : pbi |
| Operator | general aviation : personal |
| Make Model Name | Small Transport, Low Wing, 2 Recip Eng |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other descent other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | observation : passenger observation : observer |
| Qualification | pilot : private |
| Experience | flight time last 90 days : 16 flight time total : 250 flight time type : 105 |
| ASRS Report | 416236 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac non adherence : far non adherence : published procedure |
| Independent Detector | other flight crewa other other : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | other |
| Miss Distance | horizontal : 200 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
On an IFR flight plan from punta gorda to boca raton in a cessna 421C at approximately XA40. We had descended from 7000 ft to 3000 ft (requested by west palm beach approach). We had no warning from approach of any aircraft in the vicinity! Only evasive action by the C172 prevented a midair. As a pilot passenger, my first glimpse of the C172 came as it flashed by the l-hand front cabin window in a climbing attitude. I was seated behind the copilot in a rear facing seat. The C172 was at our altitude and closer than any other plane I've ever experienced. I suspect that both pilot and copilot were engaged in checking relatively new navaids and only spotted the C172 as it came close. You can bet I learned this -- even pro pilots and ATC can make mistakes. Near airports you must look outside!
Original NASA ASRS Text
Title: A DSNDING C421 IS ALMOST HIT BY A C172 WHO HAD TURNED AT THE LAST MOMENT TO PREVENT A MIDAIR COLLISION. C421 UNDER RADAR CTL, IFR FLT PLAN, BY PBI APCH CTL.
Narrative: ON AN IFR FLT PLAN FROM PUNTA GORDA TO BOCA RATON IN A CESSNA 421C AT APPROX XA40. WE HAD DSNDED FROM 7000 FT TO 3000 FT (REQUESTED BY WEST PALM BEACH APCH). WE HAD NO WARNING FROM APCH OF ANY ACFT IN THE VICINITY! ONLY EVASIVE ACTION BY THE C172 PREVENTED A MIDAIR. AS A PLT PAX, MY FIRST GLIMPSE OF THE C172 CAME AS IT FLASHED BY THE L-HAND FRONT CABIN WINDOW IN A CLBING ATTITUDE. I WAS SEATED BEHIND THE COPLT IN A REAR FACING SEAT. THE C172 WAS AT OUR ALT AND CLOSER THAN ANY OTHER PLANE I'VE EVER EXPERIENCED. I SUSPECT THAT BOTH PLT AND COPLT WERE ENGAGED IN CHKING RELATIVELY NEW NAVAIDS AND ONLY SPOTTED THE C172 AS IT CAME CLOSE. YOU CAN BET I LEARNED THIS -- EVEN PRO PLTS AND ATC CAN MAKE MISTAKES. NEAR ARPTS YOU MUST LOOK OUTSIDE!
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.