ASN Wikibase Occurrence # 59031
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| Date: | Thursday 26 March 2009 |
| Time: | 06:15 |
| Type: |  McDonnell Douglas DC-10-30 |
| Owner/operator: | Arrow Air |
| Registration: | N526MD |
| MSN: | 46998/267 |
| Year of manufacture: | 1979 |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Minor |
| Category: | Incident |
| Location: | Near Eduardo Gomes Airport Manaus - AM -
 Brazil
|
| Phase: | Take off |
| Nature: | Cargo |
| Departure airport: | SBEG |
| SKBO | |
| Confidence Rating: |  Information verified through data from accident investigation authorities |
On March 26, 2009, at 0615 UTC, an Arrow DC10-30F, registration N526MD, operating flight JW431, equipped with GE CF6-50 engines, experienced an uncontained engine failure during takeoff climb from Eduardo Gomes International Airport, Manaus, Brazil (SBEG). The airplane was operating under the provisions of 14 Code of Federal Regulations (CFR) Part 121 as a regularly scheduled cargo flight from SBEG to José Maria Córdova Airport, Bogota, Columbia. about 30 minutes after takeoff, at about 8,000 feet AGL, the airplane's No. 2 engine began to lose oil pressure and the N1 decreased. The N1 continued to decrease and the engine was shut down. The flight diverted to Rio Negro-Medellin Airport, Medellin, Colombia, where an uneventful landing was accomplished. The flight crew and one courier on board were not injured.
Post-flight inspection found that the aft end of the No. 2 engine was missing, and that there was considerable impact and tearing damage to the airplane's horizontal stabilizers, tail strut, elevator, and rudder. No persons on the ground were injured; however, the liberated engine parts had impacted a densely populated area, and 22 homes were reported damaged.
Teardown examination of the Arrow Cargo engine found that the low pressure turbine (LPT)S3 disk forward spacer arm had fractured and separated at the fillet radius between the disk spacer arm and the rim forward face. The aft section of the LPT S3 disk and all parts aft of the LPT S3 nozzles were missing. Inspection of the high pressure turbine found that one S1 blade was missing about 85% of its airfoil.
Metallurgical examination of the LPT S3 disk fracture surfaces revealed thumbnail-shaped HAF cracks over approximately 90% of the fracture surface. The cracks propagated from initiation sites spaced 0.1 inch to 0.2 inch around the inner circumference of the spacer arm. The remaining 10% of the fracture showed features consistent with overstress. The crack features indicated that, once initiated, individual fatigue cracks propagated rapidly through the spacer arm and joined to form larger cracks.
Sources:
http://noticias.bol.uol.com.br/brasil/2009/03/26/ult5772u3380.jhtm
Aero-News network
nhttp://www.aeropuertosarg.com.ar/losforos/index.php?topic=15740.20 (with photo)
http://www.ntsb.gov/recs/letters/2010/A-10-098-101.pdf
http://avherald.com/h?article=4171239c&opt=0
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 26-Mar-2009 10:25 | dantas222 | Added |
| 27-Mar-2009 03:00 | angels one five | Updated |
| 28-Mar-2009 01:28 | dantas222 | Updated |
| 28-Mar-2009 01:29 | harro | Updated |
| 28-Mar-2009 01:30 | harro | Updated |
| 27-May-2010 23:38 | harro | Updated [Time, Total occupants, Source, Narrative] |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 26-Sep-2021 07:01 | hazy | Updated [Source, Narrative] |
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