NTSB Identification: NYC89FA105.
The docket is stored on NTSB microfiche number 38852.
Accident occurred Saturday, March 25, 1989 in PITTSFIELD, MA
Probable Cause Approval Date: 01/03/1992
Aircraft: AEROSPATIALE TB-10, registration: N20NQ
Injuries: 4 Fatal.
NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.
DRG VFR FLT AT NGT, PLT TRIED CTCG ALBANY APCH CTL (ALB), 40 MI FM DESTN. CTLR ANSWERED CALL & RPRTD HE WAS NOT RCVG TRANSPONDER (XPDR), BUT PLT DID NOT HEAR HIM AS HIS ACFT WAS TOO FAR AWAY. PLT WAS ADZD, VIA AN AIRLINER, TO CALL AGAIN AFTER PROCEEDING FURTHER INBND. ABT 13 MIN LATER, PLT ESTABLISHED CTC WITH ALB, APRX 27 MI SE IN VCNTY OF PITTSFIELD AT 2500' MSL. HE ASKED, 'MY ALT OF 2500, IS THAT OK?' CTLR THOUGHT PLT WAS REFERRING TO QUALITY OF XPDR READ-OUT OF 2500' & REPLIED 'AFFIRMATIVE.' CTLR THEN ASKED IF PLT WAS VFR; PLT SAID HE WAS. SOON THEREAFTER, CTC WITH ACFT WAS LOST. IT DSCNDED INTO RISING TRRN AT ELEV OF ABT 1800'. NO PREIMPACT MECH PRBLM WAS FND. DRG PREFLT WX BRIEFING, FSS PSNL DID NOTADZ PLT OF FLT PRCTN OF OBSCD MTNS. MVA IN AREA WAS 4000' MSL. ANOTHER PLT OPERG FM PITTSFIELD RPRTD BASES OF OVC WERE RAGGED AT 2500' TO 3000' MSL & HIGHER TRRN WAS OBSCD BY CLOUDS. RCC NOT NOTIFIED; SEARCH DELAYED; CTLR'S SUPVR NOTIFIED ARTCC PER PROC FOR IFR ACFT. ARTCC DID NOT NOTIFY RCC, SINCE ACFT WAS VFR; HOWEVER, CRASH WAS NOT SURVIVABLE.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: FAILURE OF THE PILOT TO MAINTAIN PROPER ALTITUDE. FACTORS RELATED TO THE ACCIDENT WERE: INADEQUATE BRIEFING PROVIDED BY THE FLIGHT SERVICE STATION (FSS) SPECIALIST, DARK NIGHT, LOW CLOUDS, AND TERRAIN CONDITIONS.
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