MIA86IA213

NTSB incident investigation · Boeing 727-225 · Miami, FL · July 19, 1986

Incident · No injuriesIncident investigationFinal report
Date
July 19, 1986, 18:11 local (22:11 UTC)
Place
Miami, FL
Injuries
99 uninjured
Damage
Minor damage
Phase of flight
Approach
Aircraft
N8872ZBoeing 727-225
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860719074889I
Case key
31528

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

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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.

Airframe/component/system failure/malfunctionApproach
Landing gear,gear locking mechanism - corrodedCause
Inadequate surveillance,inadequate procedureManufacturerCause
Landing gear,gear locking mechanism - failure,totalCause
In flight collision with terrain/waterLanding - flare/touchdown
Landing gear,nose gear assembly - inoperativeCause

Analysis

Flt was unable to extend nose gear and a nose gear up landing was made. Investigation revealed the nose gear drag brace to be locked in the up position. Disassembly of the drag brace revealed the link assemblies which connect the locking pawls to the locking actuator had failed. Metallurgical examination revealed the link assemblies failed due to corrosion cracking. Corrosion was caused by electrolytic reaction between the metal in the bushing of the link and the metal of the link. Examination of the bushings installed in the link revealed the absence of cadmium plating and chromate coating. The bushings were obtained by eastern airlines from a vendor who was manufacturing the part using plans supplied by eastern. The eastern plans call for cadmium plating and chromate coating.

Aircraft

Registration
N8872Z
Reported as
Boeing 727-225
Category
Airplane
Serial number
21290
Engine
P&W JT8D-15, 15,500 lbs thrust, turbo fan
Damage
Minor damage
Flight
Part 121
Operator
Eastern Air Lines,Inc., doing business as Eastern Airlines
Registered owner
Bankers Trust Company
Airworthiness certificate
Standard, Transport
Departed
MKJP · Kingston, OF
Flight plan
IFR
Airport
MIA · Miami International, runway 9R, 13,000 × 150 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
46
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
14,500 total · 200 in the last 90 days · 50 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
140° at 12 knots
Visibility
7 statute miles
Lowest ceiling
None
Temperature
90 °F, dew point 72 °F
Altimeter
30.00 inHg
Observed at
MIA

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.