Baron NDT delivers nondestructive testing (NDT) programs tailored for Boeing 737 Next Generation fleets (-600/-700/-700C/-800/-900/-900ER) to help operators comply with FAA AD 2023-13-05 and Boeing Special Attention SB 737-53-1399 Rev 1. Our approach centers on Phased Array Ultrasonic Testing (PAUT) per Boeing NDTM 53-30-06, with High-Frequency Eddy Current (HFEC) screening where required by the service bulletin.
We are an NDT-only provider—no GVI or DVI—focused on delivering accurate, auditable results that stand up to engineering review and regulatory scrutiny.
Baron NDT aligns inspection scope and technique with the exact logic of Boeing Special Attention SB 737-53-1399 Rev 1 and executes techniques in accordance with Boeing NDT Manual 53-30-06. This nondestructive testing workflow ensures your 737NG lap splice inspections are performed consistently, traceably, and in full support of the airworthiness directive.
Our teams perform PAUT per NDTM 53-30-06 and apply HFEC screening wherever the bulletin specifies. We do not conduct general or detailed visual inspections (GVI/DVI); our focus is nondestructive testing only, providing high-resolution ultrasonic and eddy current data for engineering decisions.
We stage aircraft quickly at LAL, BDL, HVN, RDU, and ILG, and we deploy worldwide for line or base maintenance visits. Baron NDT scales nondestructive testing resources to meet heavy-check windows or short-notice requirements without compromising quality.
Baron NDT inspects the lap splice zones defined by the service bulletin, applying nondestructive testing in the exact sequence and coverage bands. Representative groups and station ranges include:
Baron NDT follows the bulletin’s nondestructive testing sequence: HFEC screening first, followed by PAUT for characterization and mapping. Single-element UT is employed only when the service bulletin explicitly authorizes its use.
Where the bulletin/AD permits, we perform nondestructive testing through paint-in-place. If coatings must be removed or additional access is required, we coordinate with your maintenance team to define the minimal, compliant access plan.
Every nondestructive testing job concludes with a traceable, engineering-ready package. Typical deliverables include:
Baron NDT maintains a complete in-house kit matched to Boeing 53-30-06 lap splice techniques—no substitutions required. If you prefer specific catalog numbers, include them in your PO and we will mirror your list one-for-one. Our default kit spans OmniScan X3 platforms, common PAUT probe/wedge families, HFEC probes, and aluminum lap-splice reference standards widely used on 737NG programs.
Need 737NG lap splice nondestructive testing under AD 2023-13-05 and SB 737-53-1399 Rev 1? Our Level II/III PAUT and HFEC teams are ready worldwide. Contact Baron NDT to reserve a slot or request our documents to add Baron NDT to your AVL today.
