Boeing 767-31AER PHMCH

Summary

On 28 May 1996 at about 18:21 local time, a Boeing 767-31AER registered PHMCH, operated by Martinair Holland N.v., was involved in an incident near Boston, Massachusetts, United States. 202 people were on board and nobody was injured. The aircraft was slightly damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

28 May 1996 at 18:21

Classification

Incident

Location

Boston, Massachusetts, United States

Nearest airport

Boston/Logan Intl (BOS)

Coordinates

Not recorded

Aircraft

Boeing 767-31AER

Registration

PHMCH

Category

Airplane

Engines

2

Operator

Martinair Holland N.v.

Operating rule

Part 129: Foreign

Purpose of flight

Unknown

Phase of flight

Not recorded

Route

Amsterdam, Nl → Orlando

Aircraft damage

Minor

Weather

VMC

Light

Day

NTSB number

NYC96IA116

Nobody was injured.

Numerous electrical anomalies as a result of a loose main battery shunt connection and undetermined electrical system causes.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The Boeing 767-300ER had multiple electronic (elec) anomolies, en route, including illuminated warning lights, erroneous display indications, uncommanded autopilot disconnects, & failure of flight (flt) instruments. Flt diverted, & landing (lndg) was made with zero flaps & slats extended, thrust reversers inop, ground (gnd) spoilers inop & partial anti-skid. During lndg roll, 4 main tires failed; & 4 tires deflated due to heat/fuse plugs; small main lndg gear fire erupted, but was extinguished. Flt crew were unaware that thrust reversers & gnd spoilers were inop. They noted ANTI-SKID advisory, but with the workload of responding to the multiple electrical and system failures, did not respond to it. Investigation (inv) revealed systems on several elec buses failed or became intermittently inop, but other systems on same buses remained operative. Detailed gnd & flt tests were made, but anomalies could not be duplicated. Inv revealed negative cable for main battery was not positively secured due to stripped jam nut, & main battery shunt was not built up IAW Boeing specs. Boeing indicated loose battery shunt could cause interruption to gnd. Similar events were reported with 2 other acft of same operator, but query of Boeing data base did not find similar events. Boeing 767-300ER of another operator, same configuration, did not have similar events.

Quoted verbatim from the NTSB record.