NADCAP APPROVED WELDING

Nadcap

Nadcap

Lynn Welding is proud to hold the following accreditations with 24 month merit status.

nadcap new l;ynn_Page_1

SCOPE OF ACCREDITATION
Welding

Lynn Welding Co Inc
75 Rockwell Rd
Newington, CT 06111-5535


This certificate expiration is updated based on periodic audits. The current expiration date and
scope of accreditation are listed at: www.eAuditNet.com - Online QML (Qualified Manufacturer
Listing).

In recognition of the successful completion of the PRI evaluation process, accreditation is granted
to this facility to perform the following:

AC7000 - AUDIT CRITERIA FOR NADCAP ACCREDITATION

AC7110 Rev G - Nadcap Audit Criteria for Welding/ Torch and Induction Brazing and Additive
Manufacturing (This is required for all Welding / Torch and Induction Brazing and Additive
Manufacturing audits) (to be used on audits on/after 25-Apr-2021)

AC7110S - Nadcap Supplemental Audit Criteria for Welding, Torch and Induction Brazing, and Additive
Manufacturing (to be used on audits on/after 25-Apr-2021)

U1 Honeywell

AC7110/4 Rev I - Nadcap Audit Criteria for Resistance Welding (Spot, Seam, Projection) (to be used
on audits on/after 1 March 2020)
Baseline (All audits)
Projection Welding – sheet (identify if this process is used) Seam Welding – sheet (identify if
this process is used) Seam Welding –foil (identify if this process is used)
Spot Welding – foil (identify if this process is used) Spot Welding – sheet (identify if this
process is used)
Supplement A – Aluminum / Magnesium (Additional requirements) Supplement B – Shear Testing
(Additional requirements)
Supplement F – Metallographic Evaluation of Resistance Welds (Qualification and / or Process
Control) (Additional requirements)

AC7110/4S Rev G - Nadcap Supplemental Audit Criteria for Resistance Welding (to be used on audits
on/after 1 March 2020)
U10 GE Aviation
U11 The Boeing Company

U3 Rolls Royce

AC7110/5 Rev I - Nadcap Audit Criteria for Fusion Welding (to be used on audits on/after 6 Jan
2019)
Baseline (All audits)
Supplement D – Titanium (Additional requirements) Supplement F – Filler Materials (Additional
requirements)
Supplement G – Processes using Gas (For example GTAW, PAW) (Additional requirements) Supplement H –
Pre/Interpass Heat Treatment (Additional requirements)
Supplement J – Tack Welding (Additional requirements)
Supplement K – Metallographic Evaluation of Qualification Welds (Additional requirements)

AC7110/5S Rev F - Nadcap Supplemental Audit Criteria for Fusion Welding (to be used on audits
before 01-Aug-2021)
U1 Honeywell U10 GE Aviation
U11 The Boeing Company U3 Rolls Royce

AC7110/12 Rev F - Nadcap Audit Criteria for Welder/Welding Operator Qualification (This checklist
is required if the audit includes AC7110/3, /5 or /6)
Baseline (All audits)
Supplement A – Metallographic Evaluation of Qualification Welds (Additional requirements)

AC7110/12S Rev H - Nadcap Supplemental Audit Criteria for Welder/Welding Operator Qualification
(This checklist is required if the audit includes AC7110/3, /5 or /6) (to be used on audits
on/after 4 September, 2016)
U1 Honeywell U10 GE Aviation
U11 The Boeing Company
U3 Rolls Royce


nadcap new l;ynn_Page_4

SCOPE OF ACCREDITATION
Welding

Lynn Welding
39 Progress Circle
Newington, CT 06111


This certificate expiration is updated based on periodic audits. The current expiration date and
scope of accreditation are listed at: www.eAuditNet.com - Online QML (Qualified Manufacturer
Listing).

In recognition of the successful completion of the PRI evaluation process, accreditation is granted
to this facility to perform the following:

AC7000 - AUDIT CRITERIA FOR NADCAP ACCREDITATION

AC7110 Rev G - Nadcap Audit Criteria for Welding/ Torch and Induction Brazing and Additive
Manufacturing (This is required for all Welding / Torch and Induction Brazing and Additive
Manufacturing audits) (to be used on audits on/after 25-Apr-2021)

AC7110S - Nadcap Supplemental Audit Criteria for Welding, Torch and Induction Brazing, and Additive
Manufacturing (to be used on audits on/after 25-Apr-2021)
U1 Honeywell

AC7110/1 Rev H - Nadcap Audit Criteria for Brazing (Torch/Induction) (to be used on audits on/after
7 August 2016)
Baseline (All audits)
Supplement A – Torch (Additional requirements)
Supplement G – Processes using gas (Additional requirements) Supplement H – Processes using Flux –
(Additional requirements)

AC7110/5 Rev I - Nadcap Audit Criteria for Fusion Welding (to be used on audits on/after 6 Jan2019)
Baseline (All audits)
Supplement D – Titanium (Additional requirements) Supplement F – Filler Materials (Additional
requirements)
Supplement G – Processes using Gas (For example GTAW, PAW) (Additional requirements) Supplement H –
Pre/Interpass Heat Treatment (Additional requirements)
Supplement J – Tack Welding (Additional requirements)

AC7110/5S Rev F - Nadcap Supplemental Audit Criteria for Fusion Welding (to be used on audits
before 01-Aug-2021)
U1 Honeywell
U10 GE Aviation
U11 The Boeing Company
U3 Rolls Royce


AC7110/12 Rev F - Nadcap Audit Criteria for Welder/Welding Operator Qualification (This
checklist is required if the audit includes AC7110/3, /5 or /6)

Baseline (All audits)
Supplement A – Metallographic Evaluation of Qualification Welds (Additional requirements)


AC7110/12S Rev H - Nadcap Supplemental Audit Criteria for Welder/Welding Operator
Qualification (This checklist is required if the audit includes AC7110/3, /5 or /6) (to be used on
audits on/after 4 September, 2016)

U1 Honeywell
U10 GE Aviation
U11 The Boeing Company
U3 Rolls Royce


NADCAP Certified Welding

  • GTAW welding per D17.1 Class A, B and C
  • GTAW welding per Mil-STD-2219 Class A, B and C
  • GTAW welding per BPS 4404 (Bell Approved)
  • GTAW welding per AMS-ST0-2219 (ULA Approved)
  • GTAW welding per PWA 16 (Pratt and Whitney Approved)
  • GTAW welding per CPW 24 (Pratt and Whitney Canada Approved)
  • GTAW welding per BAC 5975 (Boeing Approved)
  • GTAW welding per HS 191 (UTAS Approved, Formerly Hamilton)
  • GTAW welding per P8TF3 (GE Aviation Approved)
  • GTAW welding per EPS 14530 (Rolls Royce Approved)
  • GTAW welding per Gamps 2302 (Gulfstream Approved)
  • GTAW welding per Ground Combat Vehicle Welding Code 12479550
  • GTAW welding per AWS D1.1
  • GTAW welding per AWS D1.2
  • GTAW welding per AWS D1.3
  • GTAW welding per AWS D1.4
  • GTAW welding per AWS D1.6
  • GTAW welding per AWS D1.9

NADCAP Certified Resistance (spot) welding

  • Resistance spot welding per Mil-W-6858
  • Resistance seam welding per Mil-W-6858
  • Resistance spot welding per AMS-W-6858
  • Resistance seam welding per AMS-W-6858
  • Resistance spot welding per AWS D17.2
  • Resistance seam welding per AWS D17.2
  • Resistance spot welding per BPS 4115 (Belt Approved)
  • Resistance seam welding per BPS 4115 (Bell Approved)
  • Resistance spot welding per BAC 5977 (Boeing Approved)
  • Resistance seam welding per BAC 5977 (Boeing Approved)
  • Resistance spot welding per PWA 15 (Pratt and Whitney Approved)
  • Resistance seam welding per PWA 15 (Pratt and Whitney Approved)
  • Resistance spot welding per CPW 23 (Pratt canada Approved)
  • Resistance seam welding per CPW23 (Pratt Canada Approved)
  • GTAW welding per Gamps 2301 (Gulfstream Approved)

NADCAP Certified Brazing

  • Torch Brazing per AMS 2664 
  • Torch Brazing per AMS 2665
  • Torch Brazing per AMS 5940 (Boeing Approved)
  • Torch Brazing per PN 05.41 (Utas Approved)
  • Torch Brazing per AWS C3.4

NADCAP Certified Quality control

  • Aircraft Welding Aluminum Welding
  • Titanium Welding Aerospace Welding 
  • NADCAP Welding

Nadcap Approved Brazing

Nadcap Approved Fusion Welding

Nadcap Certified Brazing

75 Rockwell Road
Newington, CT, 06111

Phone: 860.667.4400
Email: sales@lynnwelding.com