MIA87IA264

NTSB incident investigation · Boeing 727-225 · Hampton, NY · September 29, 1987

Incident · No injuriesIncident investigationFinal report
Date
September 29, 1987, 19:18 local (23:18 UTC)
Place
Hampton, NY
Injuries
97 uninjured
Phase of flight
Enroute
Aircraft
N8864EBoeing 727-225USAFLockheed C-141
Weather
Visual (VMC) · Dusk
Status
Completed · report November 15, 1989
Report
Approved by Office Director
Case key
31805

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Near collision between aircraftCruise - normal
Light condition - duskFactor
Ifr separation standards - not maintainedAtc personnel(artcc)Cause
Lack of familiarity with geographic areaAtc personnel(artcc)Factor
Near collision between aircraftDescent - normal
Light condition - duskFactor
Ifr separation standards - not maintainedAtc personnel(artcc)Cause
Lack of familiarity with geographic areaAtc personnel(artcc)Factor

Analysis

A full performance level controller (fpl ctlr) at sector 31 of boston ARTCC was giving familiarization training to another fpl ctlr to familiarize the trainee with a new area that had been transferred from new york ARTCC to boston ARTCC. Sector 31 was considered to be a rather complex & busy area. During a busy period after traffic had 'peaked', the ctlrs were concentrating on a potential conflict between 2 acft when one of them (eastern flt 380, a Boeing 727) began converging with a 3rd acft (mac 67947, a USAF C-141). The conflict alert system activated & the ctlrs issued a turn to avoid convergence; however, the 2 acft passed within 1/2 mi of each other with the same altitude assignment. EA380 had been assigned an abnormally low altitude (FL230) for its routing. The conflict occurred when EA380 turned in response to an ARTCC clearance.

A full performance level controller (fpl ctlr) at sector 31 of boston ARTCC was giving familiarization training to another fpl ctlr to familiarize the trainee with a new area that had been transferred from new york ARTCC to boston ARTCC. Sector 31 was considered to be a rather complex & busy area. During a busy period after traffic had 'peaked', thectlrs were concentrating on a potential conflict between 2 acft when one of them (eastern flt 380, a Boeing 727) began converging with a 3rd acft (mac 67947, a USAF C-141). The conflict alert system activated & the ctlrs issued a turn to avoid convergence; however, the 2 acft passed within 1/2 mile of each other with the same altitude assignment. EA380 hadbeen assigned an abnormally low altitude (FL230) for its routing. The conflict occurred when EA380 turned in response to an ARTCC clearance.

Aircraft · 2

Registration
N8864E
Reported as
Boeing 727-225
Category
Airplane
Serial number
20626
Engine
P&W JT8D, 15,500 lbs thrust, turbo fan
Damage
No damage
Flight
Part 121
Registered owner
Eastern Airlines
Airworthiness certificate
Standard, Transport
Departed
DCA · Washington, DC
Destination
BOS · Boston, MA
Flight plan
IFR
Registration
USAF
Reported as
Lockheed C-141
Category
Airplane
Engine
P&W TF-33, 20,350 lbs thrust, turbo fan
Damage
No damage
Flight
Armed forces
Operator
Usaf
Registered owner
Usaf
Airworthiness certificate
Standard, Transport
Departed
Mcguire Afb, NJ
Destination
Mcguire Afb, NJ
Flight plan
IFR

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot, aircraft N8864E
Age
53
Certificates
Flight engineer, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
17,420 total
Role
Pilot, aircraft 2
Certificate
Military
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left

Weather

Conditions
Visual (VMC) · Dusk
Visibility
8 statute miles
Lowest ceiling
None
Temperature
-0 °F, dew point -0 °F