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B717 at FL270 with ZMA issued traffic by ATC as F14 below at FL260, visually observed F14 at 200 ft above, TCASII indicated F14 as FL260.
| Attributes | |
| ACN | 634855 |
| Time | |
| Date | 200410 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : pie.vortac |
| State Reference | FL |
| Altitude | msl single value : 27000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zma.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B717 (Formerly MD-95) |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zma.artcc |
| Operator | other |
| Make Model Name | Tomcat (F14) |
| Operating Under FAR Part | Part 91 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : atp |
| Experience | flight time last 90 days : 245 flight time total : 12000 flight time type : 6000 |
| ASRS Report | 634855 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne critical non adherence : clearance non adherence : far non adherence : required legal separation |
| Independent Detector | aircraft equipment : tcas other flight crewa other flight crewb |
| Resolutory Action | controller : issued advisory |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 5000 vertical : 200 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were on top of clouds, in level flight with autoplt on at FL270 south of pie. ATC reported an F14 at 12 O'clock position at FL260. TCASII target was observed at that position at -10 (1000 ft below). The first officer picked up the traffic at 12 O'clock position. I looked at the first officer and saw the traffic go by very close. It appeared to be in the upper 1/2 of the first officer's side window. I would estimate horizontal distance less than a mi and slightly above us (about 200 ft), time in view less than 1 second. We reported this to ATC and verified our altitude at FL270. The TCASII target was in view behind us at -10 and when ATC asked him to verify his altitude, the TCASII display (-10) went away. No other altitude or altimeter discrepancies were observed on our aircraft. Our aircraft was checked ok by maintenance.
Original NASA ASRS Text
Title: B717 AT FL270 WITH ZMA ISSUED TFC BY ATC AS F14 BELOW AT FL260, VISUALLY OBSERVED F14 AT 200 FT ABOVE, TCASII INDICATED F14 AS FL260.
Narrative: WE WERE ON TOP OF CLOUDS, IN LEVEL FLT WITH AUTOPLT ON AT FL270 S OF PIE. ATC RPTED AN F14 AT 12 O'CLOCK POS AT FL260. TCASII TARGET WAS OBSERVED AT THAT POS AT -10 (1000 FT BELOW). THE FO PICKED UP THE TFC AT 12 O'CLOCK POS. I LOOKED AT THE FO AND SAW THE TFC GO BY VERY CLOSE. IT APPEARED TO BE IN THE UPPER 1/2 OF THE FO'S SIDE WINDOW. I WOULD ESTIMATE HORIZ DISTANCE LESS THAN A MI AND SLIGHTLY ABOVE US (ABOUT 200 FT), TIME IN VIEW LESS THAN 1 SECOND. WE RPTED THIS TO ATC AND VERIFIED OUR ALT AT FL270. THE TCASII TARGET WAS IN VIEW BEHIND US AT -10 AND WHEN ATC ASKED HIM TO VERIFY HIS ALT, THE TCASII DISPLAY (-10) WENT AWAY. NO OTHER ALT OR ALTIMETER DISCREPANCIES WERE OBSERVED ON OUR ACFT. OUR ACFT WAS CHKED OK BY MAINT.
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.