# SAIB NM-07-36: Grounding plate and bonding jumper to improve electrical bonds between pitot probes and airplane structure - Type: Special airworthiness information bulletin (advisory, not mandatory) - Status: Current - Revision: 0 - Issued: June 8, 2007 - Products: Boeing 737-100 Series, 737-200 Series, 737-200C Series, 737-300 Series, 737-400 Series and 737-500 Series - Product type: Aircraft, Large Airplane - PDF: https://openairdocs.org/files/sha256/cd/81/cd81c909bc37058d1bcd36c1602853fb9ed8d02bc5e8ff48739bbe5d89c22363 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D796FF8CDC788EA5862572F4004BFDDE.0001 - DRS record last changed: June 8, 2007 - Page: https://openairdocs.org/saib/NM-07-36 ## Text FAA Aircraft Certification Service **SPECIAL AIRWORTHINESS** INFORMATION BULLETIN http://www.faa.gov/aircraft/safety/alerts/SAIB SAIB: NM-07-36 Date: June 8, 2007 This is information only. Recommendations aren’t mandatory. Introduction This Special Airworthiness Information Bulletin (SAIB) advises you, owners and operators of The Boeing Company Model 737-100, -200, -300, -400, and, -500 airplanes, to install a grounding plate and bonding jumper to improve electrical bonds between pitot probes and airplane structure. Background This SAIB is prompted by an operator report of fire and smoke from the flight deck lower left hand sidewall during approach. Investigation showed the probe heater had shorted to its case, and that a high bond resistance between probe and airplane let current flow through the flexible hose by way of the metal spiral hose reinforcement. Enough heat was generated to cause burning of the hose. Recommendations We recommend that you incorporate Boeing Special Attention Service Bulletin (SASB) 737-34-1710 Revision 2, dated August 31, 2006. This SASB provides instructions for installation of a ground plate, jumper, and ground stud, and replacement of alloy steel screws with CRES screws at each pitot probe installation. For Further Information Contact Paul Feider, Aerospace Engineer, FAA Seattle Aircraft Certification Office, 1601 Lind Avenue, SW, Renton, WA 98055-4056; phone: (425) 917-6467; fax: (425) 917-6590; email: paul.feider@faa.gov For Service Bulletin Information Contact Boeing Company at P.O. Box 3707, Seattle, WA 98124 or through the following website: https://www.myboeingfleet.com/boldweb/index.bhtml ## Registered aircraft it may concern (OpenAirDocs) Registry models matched by make and model, the same way as ADs, most registered aircraft first. - [Boeing 737-400](https://openairdocs.org/model/boeing-737-400): 8 registered aircraft (airframe model) - [Boeing 737-436](https://openairdocs.org/model/boeing-737-436): 6 registered aircraft (airframe model) - [Boeing 737-500](https://openairdocs.org/model/boeing-737-500): 6 registered aircraft (airframe model) - [Boeing 737-300](https://openairdocs.org/model/boeing-737-300): 4 registered aircraft (airframe model) - [Boeing 737-205](https://openairdocs.org/model/boeing-737-205): 3 registered aircraft (airframe model) - [Boeing 737-484](https://openairdocs.org/model/boeing-737-484): 3 registered aircraft (airframe model) - [Boeing 737-490](https://openairdocs.org/model/boeing-737-490): 3 registered aircraft (airframe model) - [Boeing 737-524](https://openairdocs.org/model/boeing-737-524): 3 registered aircraft (airframe model) - [Boeing 737-505](https://openairdocs.org/model/boeing-737-505): 2 registered aircraft (airframe model) - [Boeing 737-200](https://openairdocs.org/model/boeing-737-200): 1 registered aircraft (airframe model) - [Boeing 737-201](https://openairdocs.org/model/boeing-737-201): 1 registered aircraft (airframe model) - [Boeing 737-209](https://openairdocs.org/model/boeing-737-209): 1 registered aircraft (airframe model) - [Boeing 737-210C](https://openairdocs.org/model/boeing-737-210c): 1 registered aircraft (airframe model) - [Boeing 737-242C](https://openairdocs.org/model/boeing-737-242c): 1 registered aircraft (airframe model) - [Boeing 737-275C](https://openairdocs.org/model/boeing-737-275c): 1 registered aircraft (airframe model) - [Boeing 737-290C](https://openairdocs.org/model/boeing-737-290c): 1 registered aircraft (airframe model) - [Boeing 737-301](https://openairdocs.org/model/boeing-737-301): 1 registered aircraft (airframe model) - [Boeing 737-306](https://openairdocs.org/model/boeing-737-306): 1 registered aircraft (airframe model) - [Boeing 737-319](https://openairdocs.org/model/boeing-737-319): 1 registered aircraft (airframe model) - [Boeing 737-330](https://openairdocs.org/model/boeing-737-330): 1 registered aircraft (airframe model) - [Boeing 737-401](https://openairdocs.org/model/boeing-737-401): 1 registered aircraft (airframe model) - [Boeing 737-405](https://openairdocs.org/model/boeing-737-405): 1 registered aircraft (airframe model) - [Boeing 737-528](https://openairdocs.org/model/boeing-737-528): 1 registered aircraft (airframe model) - [Boeing 737-112](https://openairdocs.org/model/boeing-737-112): 0 registered aircraft (airframe model) - [Boeing 737-130](https://openairdocs.org/model/boeing-737-130): 0 registered aircraft (airframe model) - [Boeing 737-200C](https://openairdocs.org/model/boeing-737-200c): 0 registered aircraft (airframe model) - [Boeing 737-202C](https://openairdocs.org/model/boeing-737-202c): 0 registered aircraft (airframe model) - [Boeing 737-204](https://openairdocs.org/model/boeing-737-204): 0 registered aircraft (airframe model) - [Boeing 737-204C](https://openairdocs.org/model/boeing-737-204c): 0 registered aircraft (airframe model) - [Boeing 737-205C](https://openairdocs.org/model/boeing-737-205c): 0 registered aircraft (airframe model) - [Boeing 737-212](https://openairdocs.org/model/boeing-737-212): 0 registered aircraft (airframe model) - [Boeing 737-214](https://openairdocs.org/model/boeing-737-214): 0 registered aircraft (airframe model) - [Boeing 737-217](https://openairdocs.org/model/boeing-737-217): 0 registered aircraft (airframe model) - [Boeing 737-219](https://openairdocs.org/model/boeing-737-219): 0 registered aircraft (airframe model) - [Boeing 737-219C](https://openairdocs.org/model/boeing-737-219c): 0 registered aircraft (airframe model) - [Boeing 737-222](https://openairdocs.org/model/boeing-737-222): 0 registered aircraft (airframe model) - [Boeing 737-228](https://openairdocs.org/model/boeing-737-228): 0 registered aircraft (airframe model) - [Boeing 737-229](https://openairdocs.org/model/boeing-737-229): 0 registered aircraft (airframe model) - [Boeing 737-229C](https://openairdocs.org/model/boeing-737-229c): 0 registered aircraft (airframe model) - [Boeing 737-230](https://openairdocs.org/model/boeing-737-230): 0 registered aircraft (airframe model) - [Boeing 737-230C](https://openairdocs.org/model/boeing-737-230c): 0 registered aircraft (airframe model) - [Boeing 737-232](https://openairdocs.org/model/boeing-737-232): 0 registered aircraft (airframe model) - [Boeing 737-236](https://openairdocs.org/model/boeing-737-236): 0 registered aircraft (airframe model) - [Boeing 737-241](https://openairdocs.org/model/boeing-737-241): 0 registered aircraft (airframe model) - [Boeing 737-242](https://openairdocs.org/model/boeing-737-242): 0 registered aircraft (airframe model) - [Boeing 737-244](https://openairdocs.org/model/boeing-737-244): 0 registered aircraft (airframe model) - [Boeing 737-247](https://openairdocs.org/model/boeing-737-247): 0 registered aircraft (airframe model) - [Boeing 737-248](https://openairdocs.org/model/boeing-737-248): 0 registered aircraft (airframe model) - [Boeing 737-248C](https://openairdocs.org/model/boeing-737-248c): 0 registered aircraft (airframe model) - [Boeing 737-258](https://openairdocs.org/model/boeing-737-258): 0 registered aircraft (airframe model) All 98: https://openairdocs.org/saib/NM-07-36/models.md --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.